Sheet Metal, Machining Metal Parts, Sheet Metal Fabrication manufacturer / supplier in China, offering Hualei Customized Copper Tube Coil Fin Sheet Metal Welding Aluminuam Evaporator Coil, Hualei OEM Parts Customized Service Wholesale Copper Aluminum Fin Evaporator, Hualei OEM Refrigerator Part Customized Aluminum Copper Heat Exchanger and so on.