ERW WELD steel pipe and tube

1ERW WELD steel pipe and tube
2square pipe
3F15~76
4thickness(mm)0.6~3.5
5ISO9001
ERW WELD steel pipe and tube
square pipe
F15~76
thickness(mm)0.6~3.5
Surface treatment
1.black without surface treatment
2.white without surface treatment
3.hot dipped galvanized
4.zinc-plate
5.made with pre-galvanized steel plate
ISO9001
best price