STS TUBULAR GROUP, S.A. is one leading manufacturer of submergedarc spiralwelded steel pipes, according to the UNION-MELT, (SAW) process.

Pipes are coated by SERT either Polyethylene, Polyurethane, Polypropylene, Fusion bonded Epoxy, coal tar, epoxy paint, etc.

The major applications for these pipes are gas or oil transport and hydraulic supplies. However, they are also used in other industrial sectors, such as solids handling, piling, metallic structures and the industry in general.