On the basis of our lost wax casting foundry , Zhengzhou Tengan Industry & trade Co, Ltd. was established in 2004, in order to help our foundry to carry out international business. As development of our business, our customers are from many different industries, and their demands are not only casting, but also including forging, punching, assembled finished parts etc. In this background, TengAn invested in one forged and sand casting factory, and set up TengAn union（group） in 2008 with others some lost-wax casting factories，sand casting factories, forged factories，cold stamp factory and die-casting factory, and also have some outsourcing surface treatment factories with good long –term cooperation, so that we can supply full range services for our customers from design to door to door logistics service.