We have now probably the most innovative production equipment, experienced and qualified engineers and workers, regarded high quality control systems and also a friendly expert income team pre/after-sales support for TDS. PARTS, 16mm Drill Bit, 4mm Drill Bit, Air Pump Parts,Rail Drilling Rig. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success! The product will supply to all over the world, such as Europe, America, Australia,Algeria, Iraq,Brunei, Latvia.The design, processing, purchasing, inspection, storage, assembling process are all in scientific and effective documentary process , increasing usage level and reliability of our brand deeply, which makes us become superior supplier of the four major product categories shell castings domestically and obtained the customer's trust well.