... casting silicon sol lost wax copper alloy investment casting company profile: 1, OEM Investment Casting : 2, Machining: 3, Inspection:Casting:1. Casting ... Process: CNC machining, Sand casting, investment casting, precision casting , lost wax casting, die casting, forging, etc.Machining ISO ... bronze, silicon bronze, manganese brassAnd other copper alloy Processing stepCasting, sand blast, CNC lathe ...