weight of gi square pipe: 1) Thickness:0.5-60mm 2) Outer diameter10*10mm~600* ... ) L:2~11.8m 4) Material:Q195,Q weight of gi square pipe 1.size:10*10mm-600*600mm2.thickness:0.5mm-60mm4 ... :2~11.8m4. High Quality: ISO900:2000, API5L, API5CL Product square steel pipesStandardGB/T3091-2001,BS1387,ASTM A53, ASTM A106, EN10219MaterialQ195 ...