Hot Dip Galvanized Steel Pipe：

Standard: ASTM A53, ASTM A106, API 5L, ASTM A519, ASTM A213/A213M

Outside diameter: 21.3 to 323.8mm (1/2 to 12 inches)

Thickness: 1.8 to 20mm    

Zinc coating: 350 to 480g/m

Type of end finish: 8TPI thread, one side seamless coupling and one side plastic cap, plain end.

Packing: labeled and bundled together with steel strip

Application: it is mainly applied to health drink water transportation and low pressure liquid and gassy transportation, good structure pipe used in building, and bridge field