1.aluminium gravity die casting components. 2.Material:stainless steel,carbon steel, aluminum. 3.Die casting-gas valves. Our precursor was Zhanjiang Xin Tianyi Technology Co., Ltd , which was Built up in 1998, engaged in developing & producing high-tech. mechanical parts ,such as the spare parts for the motorcycle and the auto , the carburetor , silencer, the precision metal and rubber parts . ...