1.Product information Hot dipped galvanized steel pipe Steel Grade:Q195--Q345,S235JR,S275JR,S355JR,GR.B-D,STK500 Standard:GB/T3091--2001,BS1387--1985,DIN EN10025,EN10219,JIS G3444:2004,ASTMA53 SCH40/80/STD,BS-EN10255-2004 Surface Finish:hot dipped galvanized ,electro galvanized ,black,painted,threaded,socket,engraved. Outer diameter (inch ):1/2’’---16’’ Thickness (mm):2.0---20.0 Length (m):1---12 The section shape:round Country of origin:China(Mainland) Provinces :Tianjin Application :Structure Pipe The production process: ERW Certificate:CE 2. Product pictures        3.Customer photos:       The customer came to our factory to inspect the goods. The customer is satisfied with our goods 4.Main products