1)ISO9001, ROHS, CE 2)Red COPPER 3)Ceramic insulation 4)With high thickness Single crystal of chip ... thyristor;(TB212,TB222,TB232,TB351,TB361,and so on)fast switching thyristor;(TBH361,TBH371,TBH333.TBH4333 and so on)rectifier diodes ... -500A,MDQ10A-500A(800V-2000V)Solid state relay series;(SSR-3,ssr,jgx-1,jgx-3j)Each kind of necessary radiator ...