... punching, , CNC shearing 1. Product Name: Investment Casting / Precision Casting Parts / ball Valves / stainless steel sand casting parts ... / casting / die casting 2. Progress of precision casting: Investment casting 3. Precision Casting materials: Stainless steel, Carbon steel, iron ... machining, polishing, and plating 5. All sorts of precision casting parts: Marine casting parts, auto parts, machinary ...