Yuyao Zhenxing Industry Developing Co., Ltd was found in 1987, the mainly products are throttle shaft, throttle valve, flange, thermosister, sensor, all sorts of joints, needle valve, screw. We employ carburetor expert from Japan to give technical advise, product research, quality control.And our R&D manager has more than 22 years in researching carburetor, throttle body, so we are able to develop new style products according to your requirement. Meanwhile, we have advanced production equipment and testing facilities, like HORIBA exhaust gas analyzer, comprehensive flow testing board, drilling press. Our lab is a designated testing laboratory by Hangzhou World Certification Technology Service Co., Ltd As to the auto spare parts, we are tier two supplier of GM, Volkswagen, Ford, Honda. with TS 16949 approval Welcome to visit our factory!