Inverted drill pipe

Abstract

1. The name of the design product: anti-well drilling rod. 2. The use of the design product: in the construction of small mine shaft, underground pipeline ventilation well construction, micro-slip shaft excavation and water and electricity tunnel engineering in restricted space inclined shaft construction, cooperate with equipment to drill guide hole or inclined shaft to meet the needs of mining, ventilation, material transportation and pipeline laying. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The top view, bottom view and front view are the same, and the top view and bottom view are omitted.

Images