When it comes to the field of medicine we understand the worth of quality, effectiveness, safety and hygiene. To incorporate all these factors in our top hammer drill rig we have developed technologically advanced manufacturing facility headquartered in Beijing, , China, operating under Agency.Owing to our reliable company profile in the industry we have secured China,India,Japan,Kenya,South Korea,Singapore of export market share reaching estimated export ratio value of US$5 Million - US$10 Million, based on 17 Years .Changsha Great Wall Drilling Tools Manufacturing Co., Ltd. Private Limited came into being back in 2003 as DTH Bit,DTH Hammer,Threaded Button Bit,Drill rod,Overburden drilling system Manufacturer and Retailer. Starting off with US$50 Million - US$100 Million was quite a bit of a challenge but soon we grew into a successful entity, now holding More than 6 Million US Dollar of annual revenue.