Cangzhou Zhongshun Steel Pipe Trade Co.,Ltd is a large-scale materials circulation enterprises. To achieve one-step service,we are working together to achieve the strategic partner with a number of companies. The mainly product: welded steel pipe,spiral steel pipe,seamless steel pipe,square steel pipe ,galvanized steel pipe,elbow,flange and so on.Also can produce diameter(21.3-457.2mm) thickness of wall(1.8-14.27mm) of (ERW)electric-resistance welded steel pipe,.diameter(219-3020mm) thickness of wall(5.0-30mm)of (SSAW)double submerged arc spiral welded pipe.Diameter (426-1220mm)thickness of wall(8.0-60mm) of (LSAW) line saw pipe straight,diameter (21.3-1020mm)thickness of wall(2.0-80mm)of seamless steel pipe.The company can produce all kinds of specifications steel pipe by the standard of API,ASTM,EN,JIS,BS,Din,GB and so on. Steel grade:GR.A,GR.B,X42-X80, H40, J55, K55,S195T,S235JRH,S355JOH,ST33,ST42,STK400,STK500,Q215,Q235, 345etc.The company pay great attention on the quality of the steel pipe, the way of inspection is advanced,have the online and offline ultrasonic test, steel flat head chamfering machine,hydraulic test,as well as the cental of test parent metal chemical composition and mechanical properties and so on, the company has a strictly specified quality assurance system and has got the certificate of ISO9001-2000 for inernational quality management system and API 5L Certificate and API 5CT Certificate granted by American Petroleum institute to use the API Monogram on the longitudinally welded pipe and spirally submerged are welded pipe. The company not only has confimed a better reputation in its high quality in the domestic market,but also the products have been exported to lots of countries and regions.