Thép hộp
Thép pipe / Thép box square
treo đồng san (size):
75MMx75MM 6mm traversal 6m 150MM x150MM 6mm traversal 6m 150MM x150MM 8mm traversal 6m 60MMx 60mm 5mm traversal 6m
Thép box square (kích thước)
30×30, 40×40, 50×50, 60×60, 75×75,
90×90, 100×100, 120×120, 150×150,
250×250, 300×300
