The processing of various kinds of machine parts
- CNC Machining - The Processing of Machine Parts - 1(01-1)
- CNC Machining -The Processing of Machine Parts - 2(01-2)
- CNC Machining -The Processing of Machine Parts - 3(01-3)
- CNC Machining -The Processing of Machine Parts - 4(01-4)
- CNC Machining -The Processing of Machine Parts - 5(01-5)
- CNC Machining -The Processing of Machine Parts - 6(01-6)

The processing of main body and parts of sewing machines
The processing of various kinds of auto and cycle parts
The processing of various kinds of other parts