Precision Machining Service is a machining method with a machining accuracy of 1 micron. Precision machining methods mainly include fine car, fine boring, finishing, fine grinding and grinding. It is realized using precision machine tools and precision measuring tools and measuring instruments under strictly controlled environmental conditions. Processing precision, such as the Swiss Lathe Turning Component processing, reaches and exceeds 0.1 micron called ultra-precision machining. In the aerospace industry, precision machining is primarily used to machine precision mechanical parts in aircraft control equipment, such as hydraulic and pneumatic servos.