... Steel" (TISCO)3. From "An Steel"4. From "Wu Steel" (WISCO) Silicon Steel Coils: a) Bao steel: B50A1000, B50A800, B50A600, B50A470 ... steel: 50TW1000, 50TW800, 50TW600, 50TW470c) Wu steel: 50WW1300, 50WW800, 50WW600, 50WW470, 350WW360, 350WW310d) An steel: 50AW1300, 50AW1000, 50AW800, 50AW600, 50AW470. Characteristics ... crease, no bubble cell, no delamination defects. silicon steel strip 50ww470