Hebei changfeng steel tube manufacturing group predecessor of hebei cangzhou changfeng machinery factory (corporation) ,founded in 1987. Changfeng is a production of straight seam steel pipes and military products of large enterprises. Group is located in the NO.5 Huanghe East Road, Economic Development Zone,Cangzhou City. The unique geographical location , north of Beijing,Tianjin , east Bohai Sea .Water and land transportation is very convenient. Group's fixed assets 12 million yuan, covers an area of 130,000 square meters . Has 12 senior engineers , 76 engineers , more than 400 employees . Changfeng is a collection development,design, manufacturing as one of the large enterprises. Changfeng Group has four subsidiaries namely: Changfeng Steel Tube Company,Changfeng Machinery Company, Changfeng Steel Company, Cangzhou Huatai real estate company . Group since its establishment ,has passed the ISO9001: 2008 quality system certification and environmental and health and safety, management system certification.And has made the American Petroleum Institute API Spec 5L PSL1 PSL2, API Spec 5CT certification and China special equipment manufacturing license and CNAS. The company has three production lines 3"-8" ,8”-16” and 18”-26”. The main production of high-frequency straight seam ERW steel pipe , material Gr.B , X42-X65. Wall thickness is 4mm-20mm . Annual output of 400,000 tons . Pipe company has advanced equipment and perfect testing equipment. Rigorous process and product quality meet the national standard and API standards. Products are exported to the Middle East, Africa, South America , North America , Southeast Asia, South Korea, India , Thailand and other regions and countries . Our products are mainly used in oil, gas, city gas, pipelines , chemical, power , steel and other industries.