Q390GNH 2.0*1250*C 30 宝钢/梅钢 Q390GNH 2.5*1250*C 30 宝钢/梅钢 Q390GNH 3.0*1250*C 30 宝钢/梅钢 Q390GNH 3.5*1250*C 30 宝钢/梅钢 Q390GNH 4.0*1250*C 30 宝钢/梅钢 Q390GNH 4.5*1250*C 30 宝钢/梅钢 Q390GNH 5.0*1250*C 30 宝钢/梅钢 Q390GNH 5.5*1250*C 30 宝钢/梅钢 Q390GNH 6.0*1250*C 30 宝钢/梅钢 Q390GNH 6.5*1250*C 30 宝钢/梅钢 Q390GNH 7.0*1250*C 30 宝钢/梅钢 Q390GNH 7.5*1250*C 30 宝钢/梅钢 Q390GNH 8.0*1250*C 30 宝钢/梅钢