1997, set up, as a foundry only, producing cast iron by sand molding2000, begin to investment in the machining facilities2003, with the customers requirement and the market character, focus on development in machining capabilities2004, ISO 9001:2000 certified2005, move the foundry out and only hold some shares of a foundry, investment on machining facilities, explore a supplying chain with material of cast iron, steel, stainless steel and alloy.