Thép hộp

hang co san (size):

75MMx75MM 6MM cây 6m 150MM x150MM 6MM cây 6m 150MM x150MM 8MM cây 6m 60MMx 60MM 5MM cây 6m

Thép hộp vuông (size)

30×30,40×40,50×50,60×60,75×75,

90×90,100×100,120×120,150×150,

250×250,300×300