... yearheat treatment:anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, threading, grinding machines and test ... liquid wax slurry and solid wax together, inject wax into metal mould, fetch it out after cooling.Wax Mold AssemblyHeat the ... pack the parts into plywood or iron case for transportation. Precision casting pipe part