Hebei Yaosheng Petroleum Special Pipe Co., Ltd. is a professional manufacturer of OCTG casing and tubing pipes under the API spec. 5CT. With advanced technology and 4 automatic lines in OCTG tubular production, Yaosheng owns the capacity to produce API tubing pipes with O.D. 1.050 inch to 4 1/2 inch(P, U, I), and API casing pipes with O.D. 4 1/2 inch to 20 inch(STC, LC, BTC, P, E). In order to assure product quality, our company has established inside QC lab with advanced chemical and physical inspection equipment, such as metallographic microscopes, and NDT testing equipment and so on.

API certificate
GB/T19001-2008/ISO9001:2008
GB/T24001-2004idt ISO14001:2004
GB/T28001-2001
HSE QSY1002.1-2007
HSE QSHS0001.1-2001