深孔定向钻进
long borehole directional drilling
深孔硬岩钻进
deep-hole hard rock drilling
精密深孔钻孔工具
precision deep hole drilling tool
冲击式深孔钻机
long-hole percussive machine
多轴深孔钻床
multi-spindle deep hole drilling machine
高效小直径深孔钻削系统
high efficiency drilling system for small and deep hole
内排屑精密深孔钻
precision deep hole drill with inside chip removal
内排屑深孔钻
BTA deep-hole cutter
deep-hole drill by internal chip removal
深孔钻
Deep-hole Drilling
gun barrel drill
Deep -hole drilling
deep hole drilling
Deep-hole Drill
Deephole drilling
drilling technology and data accumulation
deep well drilling
single flute drill
深孔钻床
deep hole drilling machine