... competitive price to customer worldwide. Production flow: Drawings→ mould making →raw casting → sandblasting →rough machining or ... Sand casting, Investment casting, Silicasol castingCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, ... Full material testing process.(4) Quality control Drawings→ mould making →raw casting → sandblasting →rough machining or ...