The company acting power semiconductor products are: MITSUBISHI MITSUBISHI, SanRex three clubs, SanKen, Ken, FUJI FUJI, TOSHIBA (TOSHIBA, Infineon Infineon, SIEMENS SIEMENS, SEMIKRON XiMenKang, DAWIN David, MOTOROLA MOTOROLA, HITACHI HITACHI, EUPEC parker, IXYS ai Seth, MICROSEMI Gao Senmei, IR international rectifier company, ON ansion beauty, FAIRCHILD FAIRCHILD, well-known foreign companies such as production of GTR, IGBT, IPM, PIM, MOSFET, thyristor, thyristor, fast recovery diodes, rectifier bridge, drive and optical coupling, fuse/fuse, absorbing capacitor, electrolytic capacitor, DC/DC, AC/DC power supply module and power module power calibration, and so ON.