weight of gi square pipe: 1) Thickness:0.5-60mm 2) Outer ... :2~11.8m 4) Material:Q195,Q weight of gi square pipe 1.size:10*10mm-600*600mm2.thickness:0.5mm-60mm4.Satndard ... , 20#, A53 A/B, A106 B/C, St37, St52Outer diameter10*10~600*600mmWall thickness0.5~60mm Length2~11.8m, or as ...