... factory which in high precision casting parts , machining processing parts for more than 6 years ... parts, forging parts, Machining parts, CNC milling and turning parts , CNC milling parts, CNC lathe turning parts, grinding parts, stamping parts, casting and forging parts,welding parts ... ,GB standardPrecision steel casting 1. Description: Precision Investment, Lost Wax Process..........2. Material: ...