Galvanized C Beam/Channel for Steel Structure Tangshan Grand Faith Steel Co., Ltd. Base Info Standard:GB, JIS, JIS G3192Perforated:Not PerforatedGrade:Ss400, Q235B,Q345b, S235jr S275jr Description Pre:Cold Rolled Grain Oriented Silicon Steel Coil of CRGO Steel Sheet for Transformer From China Supplier R Next:CRGO Scrap Sheet of Silicon Steel Cold Rolled Grain Oriented Silicon Electrical Silicon Steel