manufacturing and export machine parts such as sand casting,precision casting,investment casting,lost wax casting,die casting,gravity casting,centrifugal casting,lost foam casting,shell mold casting,low-pressure casting,caterpillar bucket teeth and auto and marine parts,stamping,bending,extrusion,fabrication, robot welding,spring,and hardware,spring,forging,precision machining,CNC,cemented carbide,tungsten carbide.