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
Found 2 products about
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