潜孔

• Research on the applying of pneumatic down - hole hammer in anti - slide pile construction
  风动潜孔锤用于抗滑桩施工的研究
• Down hole hammer and bit
  潜孔冲击器及钻头
• A designing conception on the model t - 150 high pneumatic pressure ring - shaped dth drill
  150型高气压环形潜孔钻机的设计构想
• Research on the automatic control strategy for the feeding force of the down - the - hole drill
  潜孔钻机推进力自动控制策略研究
• Testing application of high and medium wind pressure down - hole drillin long and medium hole drilling
  15型履带式中风压潜孔钻车
• Study on the automatic floating control program for the propulsion of down - the - hole drill
  潜孔钻机推进器自动浮动控制方案的研究
• Causes for abnormal jamming of drill tools of simba 261 dth drill and control measures
  261型潜孔钻机非正常卡钻的原因及其控制方法
• Application of casing drilling and dth drilling combined technique for boulder formation
  潜孔锤复合性钻进工艺在河床卵砾石层中的应用
• Down hole bit
  潜孔钻头
• Down hole bit
  潜孔钻头