Product name pre-galvanized steel pipe Size OD16MM-OD610MM,Wall thickness 0.5mm-3.0mm,Length 1-12m Steel material Q195,Q215,Q235,Q345,STL400,ST37-2,16Mn,10#,20# Standard BS1387-1985,ASTM A53,ASTM A106,GB/T3091-93-2008,EN10129,JIS. Usage Used For irrigation,Structure, Accessorize And Construction Ends 1) Plain 2) Beveled 3) Threaded with Coupling & cap Surface pre-galvanized Technique Electronic Resistance Welded (ERW ) Zinc coating 40-60g/sqm Inspection With Hydraulic Test, Eddy Current , Infrared Test Package in bulk or in bundle or as client's request