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Directional drilling rig pipe laying construction law and professional trenchless pipe laying drilling rig manufacturer Which horizontal directional drilling, trenchless drilling rig model, trenchless drilling rig construction, trenchless directional drilling price trenchless small rig, used trenchless drilling rig prices, trenchless drilling rig rental - Dongguan Dragon machinery for you! Domestic production rig Dragon Trenchless experienced - can greatly enhance your workload Dongguan Shenlong Machinery happy to serve you! Depending on the type of drilling formations, the ability to select directional drilling can be very different. Typically, homogeneous clay formation easiest drilling; sand layer to harder, especially when it is located below the water table or not self-stability; gravels will accelerate drilling bit wear. Standard rig without impact action or mud motor, generally does not apply or hard rock drilling sandwich, because once encountered such obstacles, the drill will be unable footage or deviate from the design trajectory. Advantages excavation directional drilling level crossing is that it is easy to reach the design depth, the coating can not easily be destroyed, to ensure the life, does not change the geological structure of the riverbed, and does not destroy the terrain on both sides of the embankment, without affecting the normal shipping and surface operations, and short duration, cost less, it is the world's most popular non-polluting environmentally friendly through methods. Please call to discuss asking price! Dongguan City Shenlong Machinery Co., Ltd. specializes in the hotel: the principle of non-excavation drilling rig, trenchless pipe laying drilling rig, used trenchless drilling rig, rig trenchless works, trenchless pipe laying drilling rigs, drilling rigs and other pipelaying. Since its inception the company has completed a variety of pipeline Unicom, China Netcom, Mobile, TV, electricity, gas, water and sewage companies, pipeline cumulative 150km. The deepest depth of 12 meters across. The company adhere to the concept of science and technology are primary productive forces, in the trenchless technology industry to introduce reverse circulation, mud separation technology, to ensure the cleanliness of the construction site. With the increasingly fierce competition in the market, the company in a truth-seeking, pragmatic, sophisticated and efficient principle to provide you with quality services to meet your needs. I company with strong technical force, first-class construction technology, rich experience in construction, friendly service and a good reputation for the majority of users. "Well-designed, scientific management, first-class quality, the owners first" is our commitment to you forever!