Horizontal Directional Drilling is at the surface of excavation conditions, laying a variety of underground utilities Trenchless Machine. It is widely used in water supply, electricity, telecommunications, gas, oil pipeline construction, it is suitable for sand, clay, gravel and other conditions, most of China’s non hard rock area can construct. The working environment temperature is -15℃-+45℃. horizontal directional drilling technology is the directional drilling technology in petroleum industry and the traditional pipeline construction method combined with a new construction technique together. It has construction characteristics of fast construction, high precision, low cost and so on. It also has gained rapid development in the past ten years, becoming an emerging industry in developed countries.
