Specifications

heavy caliber steel pipe seamless pipe welded pipe spiral pipes

The hot-rolled tubes and API seamless toughened steel tubes are for wholesale, with invisible welded lines. The hydraulic test grade is 5MPA-30MPA (30 to 50 times by ordinary welded tubes). Our company has gained deed of appropriation of API5I member symbol of American Oil Academy and passed ISO9002 quality system attestation of Norwegian Ships Classification Organization.