NOYAFA's Metal and Wire Detector

NOYAFA's Metal and Wire Detector

2021-10-24
NOYAFA
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The metal and wire detector, of great significance to SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED, is mainly characterized by unique design and wide applications. In addition to the standard version, our team of professional designers is able to offer custom service according to the specific requirement. Its wide applications, in fact, are a result of the advanced technology and clear positioning. We will make continued efforts to optimize the design and expand the application. Customer prefers NOYAFA products mainly based on good feedback. Customers offer in-depth comments for them, which is of great importance for us to make the improvement. After product upgrades are implemented, the product is bound to attract more customers, making sustainable sales growth possible. A continuous achievement in product sales will help improve the brand image in the market.As a service-focused company, Best Cable Tester Supplier in China _ Noyafa attaches great importance to the service quality. To ensure the products including metal and wire detector delivered to customers safely and completely, we work with reliable freight forwarders with sincerity and closely follow up the logistics process.
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Cable Tracker and TV Antenna Finder
Cable Tracker and TV Antenna Finder
The introduction of cable trackerThe introduction of cable tracker is a crucial element in the history of cable TV. Even though it has been around for over two decades, it is still essential to understand its history and how it works.Tips for cable trackerIt is not a good idea to focus on only one topic. When you are writing a cable tracker, you do not want to work on the same topic all the time.Be creative and offer interesting angles on your topic. You can come up with multiple variations of the same thing to keep your audience engagedWriting for cable used to be very difficult and time-consuming. Now, with technological advancements, there are many ways of writing for cable that can be accomplished in an efficient manner.For example: You may want to write many short summaries that appeal to different target audiences at once (i.e., teenagers, young adults). Or you may want to use videos as well as text content since these two mediums are used very frequently by different segments of your audience (e.gHow to use cable tracker?In a recent survey covering 78% of the respondents, cable tracking was found to be the most important method for generating content ideas.The specifications of cable trackerWith the help of a cable tracker, the customer can be aware of where their cable is. This is very important for any business, and especially in the digital world.A cable tracker can be found in almost every household or business, but there is still a huge demand for it, which means that many companies do not have such a device in their offices. So to address this need, it was created so that even if you are at home and unable to get your hands on such a device, you still have access to information about your cables. For instance, if you are working from home and just need to know where your cable is located within the cables at home (or on the office), then this could be a helpful tool that could save you time and money.The product instructions of cable trackerSometimes, cable companies send you a bill for services that you have already paid for. The problem is that they don't tell you what the service actually does.There are plenty of reasons why the customer may want to know what their cable provider actually does.The application of cable trackerThe cable tracker is a product that helps customers to find out what channel you are watching. For example, it will show you the channels that you are watching and what time they are on. It also shows the summary of all channels that you have visited.
Steps for Cable Fault Detection
Steps for Cable Fault Detection
The detection of cable fault generally goes through three steps: diagnosis, ranging and fixed point. 1. Cable fault nature diagnosis the diagnosis of cable fault nature, that is, to determine the type and severity of fault, so that testers can suit the remedy to the case and select appropriate cable fault location and fixed-point methods. 2. Cable fault location cable fault location, also known as rough measurement, uses instruments to determine the fault distance at one end of the cable. The common fault location methods at the test site include classical bridge method (high voltage bridge and low voltage bridge) and modern traveling wave method (pulse method: low voltage pulse method and high voltage pulse method). 3. Cable fault location cable fault location, also known as precise measurement, is to find out the general orientation of the fault point according to the fault location results and the path direction of the cable, and determine the accurate location of the fault point within a very small range by using the discharge acoustic measurement method or other methods. Generally speaking, successful cable fault detection must go through the above three steps, otherwise it will not be achieved if you want to speed up. For example, it is very difficult to detect the discharge sound at the fault point along a long cable path (possibly several kilometers long) without fault location. If the cable fault distance is known and a general orientation is determined, it is much easier to move the fixed-point instrument back and forth within a small range (about 10m) to detect the discharge sound at the cable fault point.
Model Prototype Exercise: Handheld Electric Screwdriver
Model Prototype Exercise: Handheld Electric Screwdriver
To practice designing 3D low-fidelity prototypes, I was tasked to prototype an OXO handheld electric screwdriver as a new opportunity to expand their business into new product lines.Designing for OXOs Brand IdentityBefore sketching out design ideas, I wanted to familiarize myself with the OXO brand, hoping that the form of my design will match with OXOs brand identity. OXO incorporates comfortable and easy to use tools, while also applying simple,universal design. When I was sketching, I wanted to prioritize comfort, which is why the designs for the screwdriver include a hand grip area for the user to comfortably hold the screwdriver. I also attempted to emulate the simple designs of OXO, because the interfaces to be as minimalist as possible.Additionally, the sketches addressed the product requirements of a fluid speed control, a automatic screw driver selection (shape and size), direction mechanism (screwing in vs. screwing out), and a progress digital readout (number of screws in and out).PrototypeI created a handheld electric screwdriver prototype that is 6 inches long. With rocks and Easter eggs filled with rice inside, the prototype weighs one pound, emulating the actual weight of the product. Shape & FormI wanted the shape and form of the screwdriver to be comfortable and intuitive for the user. The handle on the screwdriver is slightly curved to emulate the natural grip when holding an object around your hand. I also included tape around the area to represent different material that would be incorporated for comfort. Additionally the handle is suitable for left-handed users or right-handed users.FunctionalityThere are several functionalities that make the prototype, including speed control, screw driver shape/size selection, screw driver direction, and a digital readout component. The screwdriver will also have a rechargeable battery. Fluid Speed Control Mechanism: I incorporated a fluid speed control under tucked in the handle for easy access to change the speed of the screwdriver while holding it at the same time. The sensor will capture the pressure of the grip and change the speed accordingly. The white thumbtack shown in the left image above is located where ones index finger would be, a intuitive hold and position to be controlling the speed. Screw Driver Selection Mechanism (shape/size): For the screw driver shape and size selection, this screwdriver supports 2 different head changes (Phillips or flat) and 5 different sizes. This screw driver shape and size is presented on a touch screen, where the user can tap to select different heads and sizes. After the user will press set for the screwdriver to automatically change shape/size. This interface is above the gripped area to avoid accidental switches in screw driver. Additionally the interface faces the user when they hold onto the screwdriver, allowing for easy visibility of the current setting of the screwdriver.Screw Driver Direction Mechanism: The screw driver direction mechanism is located on the side of the screwdriver with a slider mechanism to change the direction based on if the user is screwing in versus out. Digital Readout Component: The digital readout component shows the number of screw in and out below the direction mechanism. The reset button allows for the user to set the count back to 0.Rechargeable Battery: The screwdriver is rechargeable and the battery is placed inside the bottom of the screwdriver. AnalysisAfter finalizing the prototype, my peer members were able to give critiques and I was able to conduct one in-depth user test on all functionality. Click on the link below to view a snippet of the user test.What went well?Many users enjoyed the fit and weight of the prototype, explaining that the curved form of the screwdriver fit well with their grip and how they would intuitively hold the screwdriver. Users found the reset button on the count of the number of screws in and out practical and functional even thought it wasnt a product requirement.The speed control was intuitive for everyone, knowing that the harder they pressed the faster the head would turn. All users found the button placed in a comfortable position where their index finger was. The placement of the rechargeable battery was intuitive for all users.What needed improvement?Many users were confused with the digital readout component that indicates the count of screws in and out. Manyusers were unable to initially understand what the numbers stood for. There was uncertainty with the set button, expressing confusion on the ordering of changing the heads of the screwdriver. If the set button should be pressed before or after selecting the shape and size.The placement of the reset button may get in the way when gripping the screwdriver, possibly causing unintentionally reset of the digital readout. Additionally there was no way to reset only one of the digital readout numbers. So if a user wanted to reset only the number of screws in, this would not be possible.Takeaways & Next StepsOverall based on this analysis, the most effective component of the prototype was the shape/form of the screwdriver as well as the fluid speed control mechanisms. Both were praised and intuitive for users. However, the least effective component was the interface of the digital readout component. By using icons paired with labels of in and out the digital readout component can be more clear on what is being represented. Additionally if the slider is placed between the label and the actual readout component, the label would be on the top, possibly better indicating what the digital readout is and what the in and out slider does.Next steps would be to improve on the interfaces of the digital readout component, since this was the least effective functionality. After improving on the new interface, the next step is to do another round of critique and user testing. RELATED QUESTION Which is the best natural face mask for dark and oily skin? Hello there,The Best Face Mask for Oily SkinOily skin can be a major cause of acne because the pores are constantly clogged. This is why you need a great mask to help get rid of excess oil in the pores and on the skin.This mask works hard at regulating oiliness, soothing acne flare-ups and soothing the skin. To make the mask, you will need:1 apricot1 tablespoon of natural yogurt1/2 teaspoon of cosmetic clayDirections:Blend the apricot in a food processor. Add the yogurt and the clay and mix it until it becomes a smooth paste.Apply the mixture to your face and allow it to dry for 20 minutes before rinsing it off with lukewarm water. We love DIY face masks because of their easy to make recipes and all-natural ingredients.Heres some best face mask for all skin problems. You can make it easily at your home.1. The Activated Charcoal Acne Face Mask2. The Avocado & Honey Acne Blasting Face Mask3. The Honey Acne Face Mask4. The Cucumber Acne Face Mask5. The Turmeric Face Mask for Acne6. The Aloe Vera Acne Face Mask7. The Cinnamon Acne Face Mask8. The Apple Cider Acne-Fighting Face MaskGet the face mask recipe and benefits here:22 Of The Best Natural Face MasksI hope this might be help you to get rid of oily skin.Thank You!
LC Duplex Fiber Connector for High-density Cabling
LC Duplex Fiber Connector for High-density Cabling
Due to its small size, LC connector is the mainstream fiber optic connectors and is widely used in optical communication networks, data networks, and cable television networks. In daily application environment, LC duplex connector used more often because of its cabling space saving. LC duplex fiber optic connector is two simplex LC connectors encased in a common housing. Compared with LC simplex connector, the installation steps are reduced, saving time and money.HYCs LC duplex connector is superior to traditional LC duplex connector, providing an innovative solution for quick unlocking. Compared to the traditional two single connectors, this duplex connector only needs one press to achieve double releasing. As shown in Figure 2,3, the design of this two-core connector has two advantages, one is the longer clip and another is a lower clip. The extended longer latch on top of the connector body makes it easier to disengage from the adapter, even in high-density packaging. If you have the experience of releasing LC duplex connectors in patch panels in high-density cabling, you may know why this is important. Because in the cabling case, thumbs and forefingers are not ideally suited to operate the release lever and pulling the connector. The handle portion of a conventional duplex connector will be slightly higher than the adapter, which will take up more space during the cabling installation. The lower clip design of this LC duplex connector can save more space. In the high-density environment of the data center, the space saved by multiple connectors is combined to have a great advantage.Another important advantage is the ability to reverse polarity. In the optical signal transmission, the optical signal is divided into a receiving end and a transmitting end. The optical fiber link transmitting signal (Tx) at one end of the optical cable must be matched with the corresponding receiver (Rx) at the other end, and the matching is called polarity.Conventional LC fiber jumpers have significant limitations in achieving polarity switching. It is necessary to pay special attention to the direction of polarity transformation to avoid the failure of termination and face the possibility of replacing the jumpers and re-cabling. The ability to switch the polarity of this LC duplex connector makes this operation easier, saving a lot of time and wiring costs by easily switching polarity without any tools.With the rapid application of 5G, how to provide a high-density, low-cost, easy-to-manage, and highly reliable network cabling system for data centers has become an increasingly important requirement. The LC duplex fiber optic connector is a high-reliability, low-cost, high-density cabling solution. Originally published at wordpress. com on April 27, 2019. RELATED QUESTION What is the pipe schedule, pipe class, and which kind of pipes are used? Pipe schedule always signifies the wall thickness of pipe /pipe fittings ,In simple words how thick the pipe is given by schedule , According to Asme standard For butt weld fittings B16.9 std gives you schedulePipe class refers to the material specifications of pipe ,it gives you the grade of pipeFor eg A403 Grwp gives austenite stainless steel pipe classA234 Grwp is for wrought carbon steel pipeDifferent types of pipes1.MetalsA.weldedB .Seamless2.Non metals3.HdpeWhat is the pipe schedule, pipe class, and which kind of pipes are used?.
Function of Underground Pipeline Detector in Cable Maintenance
Function of Underground Pipeline Detector in Cable Maintenance
Surface water pipelines refer to water supply, drainage (rainwater, sewage), gas, electric power, communication, heating, industrial and other pipelines. It is an important part of urban infrastructure and the basic basis of urban planning, construction and management. At present, the electromagnetic method based on the law of electromagnetic induction is the most convenient, effective and commonly used in the detection of underground pipelines. Underground pipeline detector is one such device. The receiver measures the change of the secondary field generated by the underground pipeline under the action of the transmitting airport on the ground, so as to judge the spatial position of the underground pipeline. It is generally believed that the secondary field excited by a straight line can be regarded as the electromagnetic field generated by an infinite straight line. The receiving device locates the pipeline and determines the depth according to such electromagnetic field changes. The experimental results show that the measurement results are very accurate without the interference of other pipeline fields. In order to detect pipelines accurately, quickly and efficiently, different detection methods should be selected according to the characteristics of underground pipelines. The buried pipe detector uses the principle of electromagnetic induction to detect the precise direction and depth of underground metal pipelines and cables, and find out the fault points outside the pipeline. The buried pipe detector has the functions of intelligent, graphic operation indication and audio modulation indication of all Chinese characters. It is the most convenient buried pipe detector. The built-in ohmmeter of the transmitter can automatically measure the loop resistance and automatically match the continuous output impedance to ensure the excellent output signal. The instrument can select the coupling according to the needs of practical application. Under the condition of continuous power supply, it can be used to find the path of live cable for testing. Using the 50Hz detection function of the receiver, it can also track the 50Hz power frequency signal sent by the running cable, truly achieve one machine with multiple functions, and has the best performance and cost performance. Its basic working principle is that the transmitter generates electromagnetic wave and transmits the transmitted signal to the detected underground metal pipeline through different transmission connection modes. When the underground metal pipeline senses electromagnetic wave, induced current is generated on its surface, and the induced current propagates far along the metal pipeline. In the process of current propagation, The electromagnetic wave is radiated to the ground through the underground metal pipeline. Therefore, when the underground pipeline detector detects on the ground, the electromagnetic wave signal will be received on the ground directly above the underground metal pipeline. Through the change of signal strength, the position and direction of the underground metal pipeline can be judged. According to the detection principle, underground pipeline detectors are divided into two categories. One is to detect metal markings in metal pipelines, electric / optical cables and some non-metallic pipelines by using the principle of electromagnetic induction, which is called pipeline detectors for short; The other is the use of electromagnetic waves to detect underground pipelines of various materials, which can also be used to find buried objects, commonly known as radar or pipeline radar.
Common Detection Methods of Power Cable Fault Tester
Common Detection Methods of Power Cable Fault Tester
Power cable is an underground equipment. Generally, the soil layer plays a protective role for the cable. However, once a fault occurs, it is also very difficult to find it. It takes a lot of time, which is a great waste of human and material resources. In this case, it is necessary to use cable fault detection equipment, such as power cable fault tester. The initial measurement method of common fault cable is divided into control circuit bridge balance method, bottom pressure single pulse reflector method and flash detector method. In the initial measurement method of cable fault, the appropriate cable fault detector is adopted according to the different characteristics of common faults, The distance between the common fault point and the test case and the relative path of the common fault point are accurately measured and calculated by using the cable route technical document. There are three key methods of initial measurement: control circuit bridge balance method, bottom pressure single pulse reflector method and flash detector method. The method to improve the sensitivity of the galvanometer can refit the DC amplifier in front of the galvanometer, but the gain value of the amplifier is too high, resulting in serious zero drift and the bridge can not be balanced. When the working voltage of the switching power supply of the bridge rises, the compressive strength of the insulating layer of the bridge body to the ground must be relatively increased and the safety precautions for the maintenance and actual operation personnel shall be taken. When the working voltage of the switching power supply rises to a certain value, the common fault resistor is generally unstable. If the resistance of the grounding wire suddenly decreases to zero, High voltage will be applied to the bridge and the galvanometer will be damaged. Common use methods of power cable fault tester. The characteristics and provisions of the bridge method are: it is only applicable to accurately measure the server downtime in the cable line. If there are many other common fault points in the line, it can not be used. The less the jumper wire at the other end of the cable route, the higher the jumper wire. Its cross section shall be close to the cross section of the cable conductor, and the connection shall be tightened to make its contact resistance close to zero. When raising the experimental working voltage for fault test of high resistor grounding device, be sure to give a very safe prompt. After the common fault burn through equipment is used to convert the common fault of flashover into the common fault of grounding device, the power bridge method shall be used for accurate measurement immediately, so as to prevent the insulation layer from being repaired and the common fault point from being closed again. In addition, it is not necessary to burn the resistance of the grounding wire of common faults too low, so as to prevent the difficulty of producing too little sound when using the precise measuring point method. The bottom pressure single pulse reflector method, commonly known as the single pulse method, uses the basic principle of the radio wave reflector caused by the mismatch of wave impedance when the differential signal is dispersed in the cable line. The time of the single pulse wave reflector and the wave speed of the cable are measured on the digital oscilloscope to clarify the distance between the cable fault points. In general, the characteristic impedance in the cable line is not matched with the right point. In addition to the disconnection (lead) of the electrical conductor, short circuit fault and common faults of the grounding device, there are all points with uneven characteristic impedance at the cable joint and where the cable crosses the metal material pipeline, which will also cause the reflection surface of the wave. Be sure to identify them carefully during detection. Especially when the resistance of the grounding wire exceeds about 2 3 times of the wave impedance of the cable, the fluctuation amplitude of the reflecting surface is small, and it is impossible to identify common fault points. The single pulse method is most suitable for measuring the common faults of disconnection. In addition, it is also suitable for measuring the resistance of grounding wire less than 100 & omega; Faulty cable.
Basic Knowledge of Cable Installation
Basic Knowledge of Cable Installation
Whether the cable is installed correctly or not is directly related to our personal safety, so it is very important to learn the correct cable installation method. First of all, we need to understand the precautions for cable installation: first, when the mining cable is placed in parallel with the heating pipeline, it shall be connected with a distance of 2m, and when interleaved, it shall be connected with a distance of 0.5m. Second, when the cable is placed in parallel or interleaved with other pipelines, it shall be connected with a distance of 0.5m. 3、 When the cable is directly buried, the direct burial depth of 1-35kV cable shall not be less than 0.7m. IV. when the cables of 10kV and below are placed in parallel, the clear distance between each other shall not be less than 0.1M, 10-35kV shall not be less than 0.25m, and the distance during interleaving shall not be less than 0.5m. V. the minimum bending radius of the cable shall not be less than 15d for multi-core cable and 20d for single core cable (D is the outer diameter of the cable). 6、 Discussion on 6kV and above cables. A. When placing the cable terminal, the semi-conductive barrier layer must be stripped off. The insulation shall not be damaged during operation. Knife marks and the environment with high and low resistance shall be prevented. If necessary, it shall be polished with sandpaper; The end of the barrier shall be flat, and the graphite layer (carbon particles) shall be broken and cleaned. B. The copper barrier and steel armor at the end of plastic insulated cable must be well grounded, and this criterion should also be observed for short routes to prevent electromotive force at the end of steel armor during three-phase unbalanced operation, even ignition and burning of sheath. Tinned braided copper wire shall be adopted for grounding outgoing line. Soldering iron shall be used for soldering when it is adjacent to cable copper strip, and blowtorch shall not be used for sealing welding to avoid burning insulation. C. The three-phase copper barrier shall be connected with the ground wire respectively. The detailed barrier ground wire and steel armor ground wire shall be led out separately and insulated from each other. The position of the welding ground wire shall be as low as possible. 7、 Fundamental requirements for cable terminal and center discussion: A. excellent conductor connection; b. The insulation is reliable. It is recommended to adopt radiation crosslinked heat shrinkable silicone rubber insulation material; c. Excellent sealing; d. Sufficient machine strength can comply with various operation conditions. 8、 The cable end must be waterproof and corroded by other corrosive materials to prevent breakdown caused by aging of insulation layer caused by water tree. 9、 Crane or forklift must be used for cable loading and unloading to prevent horizontal transportation and placement. Cable car must be used for large cable placement to avoid external force damage to the cable or scratch the insulation layer due to manual drag. 10、 If the cable cannot be laid in real time for some reason, it shall be stored in a dry place to prevent sunlight exposure, water inflow at the cable end, etc. Secondly, it is also a link that can not be underestimated, that is, it is necessary to conduct acceptance inspection on the installed cables to see if there are omissions. 1、 First, the user shall check and accept the cable to see if it is damaged, and the construction personnel shall test the resistance and insulation resistance of each cable with a multimeter to confirm whether the cable resistance and insulation are normal, and record it. 2、 The supervision personnel of the user are invited to accept the whole laying. The main acceptance items are: a) whether the insulation layer is laid smoothly; B) If reflective film is installed, check whether the laying of reflective film is smooth; C) Whether the barbed wire mesh is installed smoothly and fixed. D) After the heating cable is energized, check whether the surface temperature of the cable has increased significantly, and sign on the acceptance sheet for confirmation.
Cable Tester, Cable Tester Software
Cable Tester, Cable Tester Software
The introduction of cable testerTo reduce the costs of content development, some companies require their writers to do the same thing they do for clients. They test the quality of the content produced by both internal and external writers.Tips for cable testerThe cable tester is responsible for testing all the cables of a home or network. These testers are usually used to test whether a cable is working correctly or not. In most cases, the cable tester uses basic tools like voltmeter and ohmmeter to check the electrical connection but sometimes they also need other tools like earphones and headphones.How to use cable tester?Cable splitter is a device used to split an HDMI cable into two cables. It can be used to split HDMI cables into three different cables, four cables, five and so on.The specifications of cable testerAn expert in his field is a better source of information than a layman. A good cable tester knows what he is talking about and can therefore point out issues with cables.The product instructions of cable testerIn order to test the product, a tester needs to watch a video. The person who tests the product needs to know what the visuals look like. They need to know what is visible and what is not in order to understand if this is a good or a bad product for them.The application of cable testerA cable tester is an application that uses some artificial intelligence techniques to test the quality of the cables. These artificial intelligence techniques are designed to ensure that cables don't break or give out during a long run, and catch any faulty cables.The application of cable tester in a production environment is not easy, as it involves a lot of manual work as well as advanced testing procedures. It also requires communication between multiple people to make sure that all the tests are done correctly. There are also a lot of problems with this scenario which makes it more problematic for companies to consider it for their production environments.
Brief Introduction of Cable Fault Locator
Brief Introduction of Cable Fault Locator
The basic function of cable fault locator is in the power industry and some industries using cables, especially in some complex power systems. It is very difficult to find the fault of underground cable lines. However, in this regard, the continuous emergence of equipment with various functions and simple operation can not only reduce the high cost of fault detection, but also reduce the inevitable long-time power failure when difficult to find (cable fault locator) cable fault, which brings a lot of convenience to troubleshooting. Direct buried cable fault detection in underground direct buried cable and underground residential power distribution (URD) system is a very time-consuming thing, and will cause very inconvenient power failure to users. Some technologies may also damage the cable. For some equipment with high technical requirements, its operation is more complex, and only operators with strict training can use it, which brings a lot of inconvenience to the popularization and application of this kind of technical equipment. Therefore, the selection of appropriate technology depends partly on the knowledge of cable system design understood by the designer of fault detector, and also partly on the professional and technical knowledge of equipment and operators in this regard. With appropriate equipment and professional technology working on site, it is the first step to detect faults quickly and effectively. Hammering (pulse) method many power companies use hammering (pulse) method. This technique is effective in detecting high resistance faults in a simple (cable fault locator) cable system. The hammering method includes using a pulse or impulse voltage to impact the power cut cable. When an effective high voltage pulse strikes the fault area, the fault point flashover and produces a hammering sound that can be heard by the operator along the cable surface. However, detecting cable faults often requires several hammers, and repeated shocks may damage the cable. Dear customers: Hello, our company is a high-quality development group with strong technical force, providing users with high-quality products, complete solutions and superior technical services. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
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During 15 years development, Noyafa has become the most famous brand in cable testing industry in China. With excellent production capability, reliable quality, good after-sales service, we get good reputation from customers all over the world.
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