API Welded Steel Pipe Tianjin Huayou Steel Pipe Co., Ltd. Base Info Type:WeldedTechnique:SAWUsage:Pipeline Transport, Special Purpose, Machinery Industry, Chemical Industry, MiningSection Shape:RoundSpecification:API, CE, GEOrigin:Tianjin, China Description Pre:ASTM A53 Gr. B Cheap Round 140mm Seamless Steel Pipe Tube, Low Price Long Life Carbon Seamless Steel Pipe Next:25mm Seamless Steel Pipe Tube 21mm Gi Pipe Full Sizes Hot Dipped 25mm Conduit Steel Gi Pipe