Quality is from process control.

The process control of mirror actuator, especially plastic gear:
1. technician. The technicians must know not only moulds, but also gears. In this situation, he is able to manufacture a set of eligible gear mould. And his experience is very important too.
2. All-electric plastic injection machine, it is a basic condition.
3. test. Optical, acoustical, electronic, cankerous and other quipments are ecessary to check moulds and products.
4. Assembly. All-autobile assembly line is best methods to avoid worker's mistake.