square hollow section factory

The wall thickness of black square hollow section is allowed to deviate.

square hollow section, the orifice is flat, the outer and inner walls of sections are smooth, and the welds are tight.

Mild steel box section, also referred to as mild steel hollow section or ERW tube, comes in either square box format

ODM square hollow section yuantaiderun(OEM OBM) orifice is flat, the outer and inner walls of the steel pipe are smooth