... DP, MIN Rc 58 AT OEPTH OF .003Surface finish:ZINC PHOSPHATEWeight:45g/33gWild speed offer investment/precision casting of carton ... steel and stainless stell, aluminum and zinc die cast, and grey iron & ductile iron foundry. 1. ... Grey iron,ductile iron,carbon steel,alloy steel,stainless steel, zinc alloy,aluminum alloy2.Materail analysis cartificate is available.3. Packing ...