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Rotary-Resistor is a kind fashion product from Hema brand factory. As the manufacturer and supplier in China, we provide customized service and make newest and fashion Rotary-Resistor in classy quality. Contact us for lastest selling Rotary-Resistor and advanced items. Welcome to to place bulk orders. Low price can be discussed.

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Resistance Box

When only a small change in resistance, then wire to the "0" and another small indication terminal, can reduce the resistance inside the lead resistance. The resistance box should be placed in shelter room, the air temperature from + 10 Degree~ 40 Degree relative humidity below 80% should not contain harmful impurities can cause corrosion