Hebei Changfeng Steel Tube Manufacturing Group Co.,LTD is north China area specialized production high frequency straight seam welded pipe mainstay enterprise.<br />The fixed assets 250 million RMB. The production value is $ 140 Million .<br />We have advanced manufacturing and testing equipment.My company produce 150000 Tons pipes every year.<br />If you have any interest,kindly let us know by return mail.<br />All pipes are produced mainly according to GB/T9711.1-1997, APISpec5L standards. <br />Standard : API-5L,API5CT，GB/T<br />Steel grade: Q235,Q345; GR.B，X42~X70;ST52.3,ASTM A53 ,<br />ASTM A106, AND Other Special Requirement<br />Size range : OD 219-406mm ,WT 5-15mm <br />Application: For pressure liquid transport, widely used for oil,gas,water and other liquid transportation, oilfield engineering, ductwork, construction,steel pile and oil&gas project which use pipe<br /><br />Contact:stevezhu1 at hotmail dot com , stevezhu100at126dotcom <br /> We shall be glad to give you our lowest quotations upon receipt of your detailed requirements.<br /><br />