It is a product that is a product of the whole unit and service to the car. With the increasingly fierce market competition, environmental protection concept, as well as the continuous upgrading of technology and applications, international auto parts processing parts industry in recent years, showing the following characteristics: 1. Auto parts processing system, modular supply is in the ascendant. Cars can be divided into two kinds of passenger cars and commercial vehicles, in which the passenger car refers to the vehicle seat less than nine (including the driver), to carry passengers as the main purpose of the vehicle. Specifically, the passenger car is divided into basic passenger car, MPV models, SUV models and other models such as pickup, et