... to international standards3) Materials (cold rolled grain non oriented silicon steel coils):BAOSTEEL: B50A1000, B50A800, B50A600, B50A470, B35A550 ... , 350WW310ANGANGSTEEL: 50AW1300, 50AW1000, 50AW800, 50AW600, 50AW470 Imported silicon steel coils, such as Chinese steel.4) Applicable to ... for power transformers, rectifiers, electrical welders, etc.Customized spec is warmly welcomed! We can design new ...