With twenty years' history and experience, Tianjin OuNaiDa Transmissions Machinery Trading Co. Ltd. is specialized in manufacturing various kinds of standard and non-standard power transmission components, such as sprocket ,gear ,roller chain, gear rack, linear guideway ,ball screw , screw support and related products.OuNaiDa owns advanced production equipments,first class technology and professional engineers.We can also produce according to our customers' drawings or requirements.We adopts ISO, DIN, ANSI, BS standards. Most of our products are for export. They are exported to many countries like Spain, France, Italy, Belgium, Canada and USA, etc.With many years' experience in this line, we have been trusted by our partners in on-hand engineering support ,competitive price, on-time delivery, prompt response and good after-sales service.Located in Tianjin city which is a coastal city , we enjoy strategic location and convenient transportation, and create unique and advantageous conditions for the rapid development of our enterpriseFacing the future, we will persist in implementing the scientific concept of development, adhering to "quality first, customer satisfaction, and to be the best" policy, and taking every opportunity to speed up the development.We believe we will achieve common development with friends around the world to create brilliance in the near future.