Cold rolled galvanized steel pipe 1)Thickness:1.0-6.5mm 2)OD:20-168mm 3)Certification:ISO9001:20 GB/T3091galvanized steel pipe Details1.Product Name:GB/T3092-93 galvanized steel pipe 2.Place of Origin:Tianjin, China.3.Nominal Diameter:1/2,3/4,1,1-1/4,1-1/2,2,2-1/2,3,4,5,6 4.Outside Diameter(mm):21.3mm-165.0mm 5.Wall thickness(mm):2.75mm-4.50mm 6.Zinc Weight:80-400g/m² 7.Weight(kg/m):1.26kg/m-17. ...