Corten-B 2.0*1250*C 30 宝钢/梅钢 Corten-B 2.5*1250*C 30 宝钢/梅钢 Corten-B 3.0*1250*C 30 宝钢/梅钢 Corten-B 3.5*1250*C 30 宝钢/梅钢 Corten-B 4.0*1250*C 30 宝钢/梅钢 Corten-B 4.5*1250*C 30 宝钢/梅钢 Corten-B 5.0*1250*C 30 宝钢/梅钢 Corten-B 5.5*1250*C 30 宝钢/梅钢 Corten-B 6.0*1250*C 30 宝钢/梅钢 Corten-B 6.5*1250*C 30 宝钢/梅钢 Corten-B 7.0*1250*C 30 宝钢/梅钢 Corten-B 7.5*1250*C 30 宝钢/梅钢 Corten-B 8.0*1250*C 30 宝钢/梅钢