Hi friend, This is John from China. We are factory of Thyristor. Phase control thyristors , fast turn-off thyristors , high frequency thyristors , bi-directional control thyristors ,rectifer diodes, fast recovery diodes. We can produce ABB thyristor , westcode thyristor , powerex THYRISTER , IR thyristor , SKN, SKR , TOSHIBA thyristor. OWER MODULES Thyristor modules , diode modules , thyristors / diode modules , single / three phases rectification bringe modules .HEATSINKS Water cooling heatsinks of ss series , air cooling heatsinks of SF series , Moulding heatsinks factory . Can you tell me which products do you interested in? Thanks John Guangzhou Top Hua Hui International Technology Co.,ltd Mobile : 0086-13580584381 Email : zzwwjohn@126.com Skype : zzwwjun Add : No.36 Ao Zhan Gang Road Tuan Shan Town Gaoxin region Xiangyang city, Hubei province, China .