... Quality Control OEM Copper Valve Castings1. Material: The OEM valve castings are made of copper. 2. Standard: DIN, ASTM, BS, ... Dimension Range: 3mm - 3000mm5. Moulding Process: The OEM copper valve castings are sand casting. The green sand casting, resin bonded casting ... *Cartons* As the order8. Inspection* The OEM copper valve castings will be inspected by quality staff.9. Export Countries America ...