Chongqing Aoshi Gear Manfacturing Co., Ltd. has been an OEM manufacturing specilaized in Making mainshaft and countershaft and various kinds of gears, we have been supplying our products for over 20 companies as an OEM supplier. The company has a strong ability of R&D and production for new products, so we can make products according to customer's drawing and sample. The company has perfect quality system to insure quality of products. and the company has been approved ISO/ TS16949 quality certificate.