We are specialized in designing and manufacturing auto synchronizer rings exporting all over the world. We have full range of synchronizer rings used in gearbox of variety cars and trucks for Japanese series, Korean series, American series and European series such as TOYOTA, ISUZU, MITSUBISHI, HYUNDAI, Chevrolet Sail, VOLKSWAGEN, MERCEDES and etc. We also provide you gearboxes assembly and various kinds of gearbox accessories such as housing, shaft, gear, synchronizer, keys, springs, bushings, bearings, oil pump gear and etc.