HUNAN HENGYANG STEEL TUBE (GROUP) CO.,LTD.{HENGSTEEL for short}, founded in 1958,is one of the three largest specialized seamless steel pipe production enterprises in China, and production base in Central South China. It has RMB2,600,000,000 (USD313,253,000) total assets,400,000 tons of steel pipe and 200,000 tons of steel annual production capacity.

It has five steel pipe and two electric furnace steel making -horizontal continuous casting round billet production lines, of whichf89 Mandrel Mill Production Line has integrated with the latest hot rolling seamless steel pipe production technology of the world today. All of its main equipments are imported and the equipment level has reached advanced international level of 1990' s. The Steel Making -Continuous Casting Line, adopting electric arc furnace melting -ladle furnace refining -completely horizontal continuous casting round billet process, is of the advanced international level of 1980' s .The main technology equipments of the other production lines are of the advanced level in China. Hengsteel always pays attention to new product research and developing new products in order to upgrade and replace the old. Its products have increased from the original 2 categories, 17 kinds,2000 sizes into 3 categories 30 kinds, 4100 sizes. It has established a flexible marketing mechanism, and has formed a sales net covering the whole country. Its products have been sold to all the provinces including Taiwan ,cities and autonomous regions, and large quantity are export each year. Hengsteel possesses a complete and effective quality system that is in normal operation. In April, 1989, it was certified by CCS.