Shiyan City, a Parts Co., Ltd. is Dongfeng automobile braking systems and piston bushing company to establish a school run enterprises. Specializing in the production of brake system: dual chamber brake valve, adjusting valve, manual valve, following the valve, trailer valve, four circuit protection valve, spring brake chamber, exhaust brake valve, sense of valve etc.; clutch, clutch booster, clutch master pump, pumps and other; engine: fuel pump assembly, belt up tight wheel, gear room, air compressor, oil pump, water pump, oil filter block products. In addition to Dongfeng Electronic Science and technology of brake system, supporting, and Dongfeng Automobile Co., Ltd., Dongfeng Bus Chassis Co., Ltd., Dan Teqi, Hunan Zoomlion Heavy industry such as supporting enterprises. />