Zhejiang HuaShen group is specialized in precision casting enterprise group, with ningbo tongda precision casting co., LTD., (1993), ningbo fenghua innovation alloy technology co., LTD. (2007), ningbo to industry machinery parts co., LTD. (2011) three casting enterprises, has yearly produces 30000 tons of casting ability, and have independent machining ability, is one of China's largest precision casting enterprise. Three casting company has complete testing equipment (spectrometer, hardness tester, three coordinates, tensile testing machine, magnetic particle inspection machine, X-ray detection machine, etc.) and perfect quality management system (IATF16949 ISO9001, ISO14001 certification, the company's products export proportion accounted for more than 85%, the best-selling pin the United States, Canada, Australia, Britain, Germany, France, Spain, the Netherlands, South Africa, Italy, eastern Europe, southeast Asia and other dozens of countries and regions.