square steel tube
1)Standards/grade: Q195/235/345,ST37/52
2)Size: OD 10 x 10-600 x 600mm
thickness 0.8-50mm

square steel tube

1)Standards/grade: Q195/235/345,ST37/52,A53B, A179B, 20G, A106B, Din2391 17 Cr3, ST37, ST52, STK400

2)Size: OD  10 x 10-600 x 600mm

           thickness 0.8-50mm

3)Packing by bulk or in bundle

4)Original Tianjin/Hebei Provice