Linqing Ruilong Drilling Tools Co.,Ltd, established in 1993, is located in the famous ancient canal city---Linqing, Shandong, China. Our company is professional in drill and drill bit used formine. The factory covers 16,000 square meters. There are 80 staff ,7 Professional Technical staff and more than 40 sets specialized equipment. At present, our products are serialized,new T beam with prestressed hollow drill pipe winding series: new drill pipe used for soft rock excavation,coal exploring drill and light gas drainage drill for high-gas coal producing, We also development the diameter of 30, 28, 26 small diameter drill pipe and B19 anchor drill and many size of drill bits for mine.It plays good role in the process of exploring mine. We produce the Rui Long brand carbide drill head,coal rock drill,high-qualiy PDC drill and pneumatic hand-held drill which develop and produce with coal scientific research institute together. These products we produce have become first choice brand for our user. Our company had built long-term cooperative relations with coal scientific research institute new product development center and other units and owns powerful information and technology support.That can provide guarantee for producing.so,we could offer various drilling tools according to according to user's actual requirements. We are glad to work together with majority mining enterprises by pragmatic spirt and golden reputation and excellent tracking service!