Thyristor, Welding Diode, High Voltage Control Cabinet manufacturer / supplier in China, offering Double Side Cooling Fast Recovery Diode Zk 400A/2000V with Heatsink, High Frequency Small Reverse Recovery Charge Fast Recovery Diodes Zk2000A /3600-4500V, Soft Start Module Excitation Low Losses Heatsink Thyristor Ka and so on.