Black and Hot-dipped Seamless steel pipe ASTM A53

A519 for Carbon and Alloy Steel Mechanical Tubing

Line Pipe API SPEC 5L

Casing Pipe API SPEC 5CT

DIN1629 for Seamless circular unalloyed steel tube

DIN2391 Cold drawn precision seamless steel tubes

EN10216-1 as Seamless tubes for pressure purposes

EN10305 Steel Tubes for Precision Applications

Precision inside diameter steel tube for cylinder