Three links, Rock Drilling Co., Ltd. to introduce foreign advanced production technology and equipment, Rock Drilling, after decades of painstaking research and practice to produce high quality Drill Rig Series brazing products including solder tail, connect the casing drill rod, drill head. Which drill rods, solder tail, connected sets of product quality among the leading domestic level. The quality of the drill head has reached the quality level of similar foreign products and foreign products, has a higher cost. 
 Heading Drill class products are: 
 1, a variety of 35mm to 51mm diameter R25 is R28 and R32 thread Bits and cross-shaped drill head. 
 2, the connection of T38 thread R25 is R28 the R32, 1.2 to 4.3 meters in length a variety Arbors solder and quick-change drill rod 
 3, various types of connected sets 
 Adapt to various types of rock drill solder tail. 
 All kinds of boring reaming brazing. 
 The company ranks first in supporting the overall capacity of solder Drill Rig Creek Los Hydropower licensing Rock Drilling, "three links" has become a well-known brands of domestic Rock Drilling Tools products.