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Published technical notes, company developments and manufacturing updates.

2026-10-20

How to Specify Large Diameter LSAW Pipe for Project Requirements

Large diameter longitudinal submerged arc welded pipe is usually purchased against a project specification, rather than as a generic commodity. The buyer must define material, diameter, wall thickness, length, end preparation and inspection expectations before comparing offers.

2026-10-20

Qingdao Zhongrui LSAW Pipe Manufacturing Solutions

Qingdao Zhongrui Energy Equipment Manufacturing Co., Ltd. presents itself as an engineered steel solutions company based in Qingdao, China. Its website identifies large-diameter LSAW Pipe, heavy-wall longitudinal welded pipe, precision welded pipe, stainless steel LSAW pipe, tapered and reducer pipe, square and rectangular tube, shaft tube, and large formed steel components as part of its product programme.