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The drilling drug Casing drilling rig is a dual rotary joint jointly developed by Beijing Shougang Group-Thai Sheng Machinery Co., Ltd. The equipment is mainly used for basis construction of various buildings. Co***red with the Auger, the biggest feature is that drilling dump with high efficiency, no mud wall protection, no pollution. The device can be applied in a variety of soft and hard lower layer; no noise, no vibration in the system of Installation to the pile. |