... . 3)Applicable to all kinds of transformer Silicon steel sheet features:1)Specification: From EI-28 to ... 5mm4)Raw materials ( cold rolled non-oriented silicon steel coils):a) Bao steel: B50A1000, B50A1300, B50AH470, B50AH600, B50AH800, B35A270, ... B35A300b) Ann steel: 50AW1000,50AW1300c) Wu steel: 50WW1300, 50WW1000, 50WW800d) Imported silicon steel such as POSCO steel5) Applicable ...