... 1)26 years experience on OEM precision casting 2)strict Quality Control system 3)small order accepted ... :anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, threading, grinding machines ... , etc. Pack & TransportAfter rust prevention, pack the parts into plywood or iron case for transportation. Precision casting pipe part