... yearheat treatment:anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, threading, grinding machines and test ... hardening and Nitriding per material spec MachiningMachine the castings by CNC according to drawing spec. Final inspectionTest the parts’ ... into plywood or iron case for transportation. Investment casting part Flange