Material:aluminum,zinc,copper alloy OEM & ODM Over 10 years experience in die casting Pass ISO9001 Quality System Attestation High Quality Ring Castings With abundant experience of more than 10 years, we are professional in producing aluminum die casting, zinc die casting and copper die casting. Die Casting Mold1) Mold Material: 8407, P20, SKD11 or customers' appointed material.2) Mold Design: ...