热轧板卷2.75mm*1250*CQ235B本钢3740↓40热轧板卷3.0mm*1250*CQ235B本钢3680↓40热轧板卷5.75mm*1500*CQ235B本钢3650↓40热轧板卷7.5mm*1500*CQ235B本钢3650↓40热轧板卷5.75mm*1500*CQ235B北台3650↓40货少