Boron in Shanghai auto parts co., Ltd. is located in Minhang district, Shanghai Cao Hang industrial area, formerly known as the major State-owned internal combustion engine parts factory. since its 2001 restructuring of the company, with advanced research and development, companies with well-known domestic and foreign scientific research institutions and manufacturers jointly developed a series of piston ring, series of piston, cylinder liner series, bearing series, valve and tension pulley series and other products. in addition to production of metal ceramic piston ring for the main support, such as Dongfeng Cummins, Yuchai, Wuxi diesel engine works, TA, DCD, the domestic market, the company first metal ceramic piston rings. companies with outstanding product quality and good enterprise image, has won wide acclaim.