Round pipe
Standard:
a) ASTM: A53, A500, A178, A106, A179, A192, A213, A519
b) DIN: 17175, 2391
Outer diameter: 18-70mm
Wall thickness:0.4-1.5mm
Both end screwed , with one socket , and protection on the other side
Packing:
1) Hexagon bundles
2) Steel strapped