... ). Magnetic Core:1) Specification: double-E type iron cores2) Materials (silicon steel sheet): a) Bao steel: B50A1000, B50A800, B50A600, B50A470, B35A550, B35A440b) Tai ... , 50WW470, 350WW360, 350WW310.d) An steel: 50AW1300, 50AW1000, 50AW800, 50AW600, 50AW470e) Imported silicon steel coil stocks Magnetic Core/iron core/switch core/silicon ...