1: 12 years of die casting experience 2: ISO 9001 Certification 3: OEM /ODM Service 4 ... Suitable for various industries: auto, machine, valve, pneumatic , etc. 4) Whole process including: Tooling, Die casting, Sand casting, Gravity casting, CNC machining, CNC milling, Stamping ... time if there is any question on our production. Aluminum die casting handwheel of TK model knife gate/valve fittings/parts