Changfa, the largest and the most professional maunfacturer concentrate on producion diesel and gasoline power machinery in China, enjoy good reputation both in home and aboard, cooperating with many international Group in all over the world, such as Costco and AKSA. Changfa has own R&D department, more than 30 laboratories, including let-out test lab and noise-liberation lab. Changfa chooses Bosch injector and NSK bearing.