Potentiometer, Resistor, RF Resistor manufacturer / supplier in China, offering Audio Switch Knob Parts Knurled Metal Encoder Aluminum Potentiometer Knob Various Plastic Knobs, 3386MP 103 1K 10K 50K 100K Variable Fine-Tuning Adjustable with Cap Precision Potentiometer, Rx24 100W Wirewound Resistor Gold Aluminum Shell Power Resistor and so on.