Square Steel Qinhuangdao Guoyang Steel Co., Ltd. Base Info Standard:AISI, JIS, ASTM, DIN, BS, GBCertification:ULTechnique:Hot RolledWall Thickness:ThickSurface Treatment:GalvanizedAlloy:Alloy Description Pre:Hot Rolled Coil Next:Precision Square/Stainless Steel Carpenter Square