factory mill manufacturer directly supply black square hollow section
The wall thickness of black square hollow section is allowed to deviate.
Model:hfw-yt-019
The wall thickness of black square hollow section is allowed to deviate.
Model:hfw-yt-019
square hollow section, the orifice is flat, the outer and inner walls of sections are smooth, and the welds are tight.
Model:hfw-yt-023
Mild steel box section, also referred to as mild steel hollow section or ERW tube, comes in either square box format
Model:hfw-yt-026
ODM square hollow section yuantaiderun(OEM OBM) orifice is flat, the outer and inner walls of the steel pipe are smooth
Model:hfw-yt-081