... stainless steel,aluminum,alloy steel Lost Wax CastingFeatures:Main Type:Auto parts and truck accessories castings, precision castings, investment ... casting 3.Surface :Mirror or Satin polished, Galvanized and .Xinao Marine,an experienced foundry of investment castings,main ... especially in auto parts,marine hardware,construction hardware,valves and pumps parts, etc.The materials involve carbon steel ...