1)26 years experience on OEM precision casting 2)ISO9001:2008, CE/PED Certified by TUV ... than 2,000MT per yearheat treatment:anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, threading ... hardening and Nitriding per material spec MachiningMachine the castings by CNC according to drawing spec. Final inspectionTest the parts’ ...