Welding Pipe Corporation successfully produced large-diameter, thin-wall thickness and long-length ERW pipe whose OD/WT ratio was reached to103.2.

Recently Tianjin TPCO & TISCO Welding Pipe Corporation Produced high-end ERW pipes with specification of 660.4mmx6.4mm, Gr. X52, whose OD/WT ratio is reach to 103.2 and cut-to-length is 18m. This successful delivery of contract product fills in the technical gap of high-end ERW products among domestic pipe industry.