材料：Q195，Q215，Q235B，Q345B
尺寸：50x37-400x104mm
壁厚：4.5-16.5mm
长度：6-12m或定制
标准：astma53 / astm a573 / astm a283

Materials: Q195, Q215, Q235B, Q345B
Size: 50x37-400x104mm
Wall thickness: 4.5-16.5mm
Length: 6-12m or customized
Standards: ASTMA53/ASTM A573/ASTM A283