GDP International Trade CO.,LTD is a Specialized manufacturer of garage door components, mainly in the lines of rollers, pulleys, hinges, brackets, springs, spring fittings, cable drums, cables, locks, handles, screws, tracks, seals, angles etc.Now we also can make the other stamping parts as your request, and injection parts, the auto car parts, such as Led light and car glass. We are in the advantage of tracks, drums, spring fittings,rollers, ,pulley, bearings,cables and locks.The quality and prices are very competitive. We have several stamping and pressing machines, injection machines, spring rolling machines, cutting machines and folding machines, we can make the tools for your for the stamping parts, plastic products as your request.