Changsha Tianhe Drilling Tools and Machinery Co., Ltd. Is primarily engaged in road freight transportation, mining machinery manufacturing, and import-export business. In the field of mining machinery manufacturing, the company holds multiple patented technologies, including innovative achievements such as a tooth-fixing device and machine tool for processing DTH drill bits, combined large-diameter DTH drill bits, center frame supporting devices and machining equipment, and drill rods with variable outer diameters, demonstrating its technological expertise in the drilling tools sector.