1: 12 years of die casting experience 2: ISO 9001 Certification 3: OEM ... reliable supplier for many international buyers Main information about Aluminum die casting 1) Product Material: aluminum alloy, zinc alloy. 2) Surface ... valve, pneumatic , etc. 4)Whole process including: Tooling, Die casting, Sand casting, Gravity casting, CNC machining, CNC milling, Stamping, Plastic injection ,Painting ...