... & Tooling Standard: JIS, DIN, ASTM,BS OEM service electrical hardwarewe can offer you electrical parts.If you are interested in our company ... detailed information such as drawing, specification, chemical composition and so on, we would like to provide you OEM service. 1.OEM ... steel,non-ferrous,grey iron,ductile cast iron and so on 3.Process: lost wax process, soluble glass process , silicon process ...