cold forming square pipe: 1) Thickness:0.5-60mm 2) Outer diameter10*10mm~600 ... ) L:2~11.8m 4) Material:Q195,Q cold forming square pipe 1.size:10*10mm-600*600mm2.thickness:0.5mm-60mm4 ... Length2~11.8m, or as customers requests.Surface1. Bared , oiled , black painted or as customers’request2. Painting, caps, beveled edges, plain ... Mechanics testing machine to make sure high quality. cold forming square pipe