... , BV certified enterprise. Strong machining capacity. gear, auto gear, machine part. Precision casint, ISO9001,TUV-PED, BV certified enterprise details:1 ... Wax Process: Wax Patterns, Sand Shell Making, Dewaxing, Pouring, Sand Cleaning, Gas Cutting,Grinding, Heat Treatment, Shot Blasting, Reshaping, Machining2) Materials ...