LSAW steel pipe (Longitudinal submerge welded) Sizes: 406mm-1422mm Thi...

SSAW Steel pipe (Spiral submerged arc welding) Sizes: 219mm-2850mm Thi...

ERW steel pipe(Longitudinally electric resistance welded) Size: 21.3 mm...

Precision seamless steel tubes DIN 2391-1/EN 10305-1 Cold drawn or cold...