Shanghai Wan Hui Machinery Co.,Ltd.,your gateway to China, was established in 2006. WHM?s business span a wide range of metal and plastic processes specializing in steel parts as investment and sand casting, forging, machining, polishing, welding, metal fabrication and component assembly. WHM is specialized in pressure containing parts included valves, pump, flanges, fittings, orifice and engineering or their components. Regardless of whether your needs require a simple casting or large, highly sophisticated, critical components and assemblies, WHM is your choice.