Our factory specilizes in manufacturing ERW Steel pipe,including round,square,ellipse and rectangle pipe.The mill is equipped with high frequency welding system and medium frequency heat treating system,online seam UT tester,hydrostatic tester.It is a highly automatic and stable mill.Our products are widely used for oil,petrochemical,natural gas,city gas,water and coal transporting linepipes,consturction,bridge and electrical engineering,etc.The annual output of pipes is nearly 40,000 tons per year.OD 32-141mm,W.T 0.8-7.5mm.