Importance of auto parts processing: The safety performance of automobiles is related to human life. All auto parts and accessories require high requirements for accuracy and life. The quality of automobile product manufacturing includes two aspects: parts manufacturing quality and assembly quality. The quality of parts machining is the basis to ensure product quality. The machining quality includes machining geometric accuracy and surface machining quality. OYU has been constantly improving for 20 years through research and development, quality, and equipment. It is guaranteed in many aspects that every precision machined part of the automobile produced and delivered is kept improving.