Chengdu q345d straight seam steel pipes ■ Panzhihua q345d straight seam steel pipe factory direct prices fluent 
 Straight seam steel pipe is parallel to the longitudinal weld steel pipe with steel pipe. Metric is usually divided into welded steel pipe, welded thin-walled tube, transformer cooling pipes and so on. Longitudinal production process is simple, high efficiency, low cost, rapid development. Main implementation of standards: GB/T8162-2008, GB/T8163-2008, GB3087-2008, GB5310-2008, GB6479-2000, GB9948-2006, GB5312-2008 
 The company arrived in round 3,000 tons, material Q235, Q235B, 16Mn, 20 #, 45 #, 30Mn, 27SiMn, 45CrMo, research 102,30 CrMo steel and so on. Chuanmin Wang Jianhua Zhao Jicheng Mobile: 13920561128 
 Applies to: structure, fluid transport, machining, pipe piles bridges, high-pressure boiler tube, low-pressure boiler tubes, cylinders, hydraulic pillar, oil, petrochemical, shipbuilding and other industries use steel.