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SDLQ high torque, 360° rotation Drilling Rig and Rotary drilling rig for Railway / Municipal Construction / Bridges / Building drilling machinery, Find Details and Price about small rotary drilling rig dual rotary drilling rig from SDLQ high torque, 360° rotation Drilling Rig and Rotary drilling rig for Railway / Municipal Construction / Bridges / Building drilling machinery - Shandong Liqiang Machinery Co., Ltd