MBN11251-LAC340Y410T-GI50/50-U折弯工艺试样制备 ¥5020.00 MBN11251-CR4-UC-U金属材料一张起售 ¥5020.00 MBN11251-CR420LA拉伸试验表面质量级别 ¥5020.00 MBN11251-IFC240Y360T-GI70/70-U产品标准表面质量级别 ¥5020.00 MBN11251-LAC210Y310T-GI70/70-U交货状态检验项目 ¥5020.00 MBN11250-LAC340Y410T-UC-U折弯工艺双相钢供应 ¥5020.00