- square steel tube
- 2017-01-10 07:00
- Square steel tube1) led or blacked painted to prevent rust6),Packing: as u, Dimensions:20-500mm, thickness:2-25mm, Lengt
- square hollow section
- 2017-01-10 07:00
- CommoditySquare and rectangular steel pipeSpecifications20*20-500*500 mmThickness2-25 mmMaterialQ235B ,Q345B,20# ,ST37,S