Electronic Tubes, Magnetrons, Resistors manufacturer / supplier in China, offering High- Quality Vacuum Valve RS3040cj Water Cooled Triode for RF Heating Application (RS3021CJ, RS3040CL), High- Quality Electronic Tube RS3040cj Water Cooled RF Power Triode for RF Heating Application (RS3021CJ, RS3040CL), High- Quality Ceramic Tube Itk5-1 Water Cooled Triode Electronic Valve for High Frequency Plastic Welder Machine (ITK12-1, ITL12-1, ITL5-1) and so on.