1.Aluminum Casting and Machining 2.Aluminum Sand Casting. 3.Aluminum Gravity Die ... certified.2. Owned die casting and plating workshops and machining shops.3. Advanced equipment and excellent R& ... :1) Aluminum Sand Casting, Aluminum Gravity Die Casting.2) Machining: CNC turning, milling, drilling, grinding, cutting, reaming and ... plating, nickel plating, gold plating. Aluminum Casting and Machining