DN500 spiral steel pipes, 508mm caliber spiral welded steel pipe factory directly sale

Established in 2005,attached to Ruijie Industry Group,Tianjin Ruijie Steel Pipe Cpompany is specialized in the production of spiral steel pipe.There are about 250 workers in factory,covers an area of 48800 square meters with annual steel production capacity about 300,000MT. Insisting on first-calss quality,we purchased different scientific test equipment:spectrometer,metallographic,universal testing manchine and so on.