Hebei Yanshan Tianyuan Steel Pipes Factory originally founded in 1992, benefiting from the reform and opening-up policy, is continuously developing and expanding with steady step. This factory is located in Nanhuan Industrial Development Zone of Yanshan County, Hebei Province, closely near the national highway 205 with convenient traffic, and it is easy to reach in all directions, presently, it has 105 employees and business assets of nearly 28,000,000 Yuan.  
??Now, this factory is provided with 2 production lines of double-side submerged arc welding spiral pipes with the specification (?219-1820) following the GB/T9711 standard, and the annual yield is 50,000 tons. In addition, there are 2 production lines of hot-rolled steel pipes for the product API GBB163, GBB162 with the specification (?159-?630), and the annual yield is about 40,000 tons. Also, there are two production lines of empty hole cold-drawing units with the specification (?25-?159), following GBB162-1999, GBB163-1999 and GB3087-1999 standards, and the annual yield is about 20,000 tons.