Automobile brake disc, fuel tube, exhaust pipe and other large auto parts are important components in automobile manufacturing. Its market is very large, especially the brake disc (there are nearly 4000 varieties, various sizes and specifications), because it is the key system components of automotive brake safety performance guarantee, so its surface anti-corrosion treatment process is particularly important. At present the market brake disc surface treatment requirements are different, each manufacturer's product size, varieties are not same, plus coating technology maturity and environmental protection issues, resulting in processing inconvenience, low efficiency, high cost ,a series of problems. Therefore, the market needs an advanced technology and equipment for surface treatment, which is mature, reliable, energy-saving, environmental protection and easy to operate.