Marine engineering

We make API 5CT C90 Casing Tubing according to the SY/T6194-96 standard, it is open as short string sort and long string sort gave their couplings.

STPG370 is a low-carbon steel pipe material commonly used in some low-pressure pipeline systems.

GB/T 18248 seamless gas cylinder tube is a kind of seamless steel tube for gas cylinders.

A335 Grade P15 Pipe is a low alloy carbon steel (Cr-Mo) that is self quench in air, where the welding adquire high hardnees and residual stress not recomended to put it directly in services that demand critical conditions.