pre-galvanized pipe OD:1/2"to 8" Thickness:0.7mm to 25mm Brand name :TJGUOYING Biggest steel manufacturer in China Pre-Galvanized Steel Pipe galvanized pipeSizeWall thickness (W.T.)1/2”-18“0.5mm-2.5mmLength1m-12m ,by customer’s requiremntsInternatioanal StandardISO 9000-2001StandardsASTMA53,BS1387-1985,GB/T3091-2001,EN39,BS1139MaterialsQ195,Q215,Q235,Q345Product CategoryMetallurgy,Mineral & ...