精密深孔钻孔工具
precision deep hole drilling tool
冲击式深孔钻机
long-hole percussive machine
电测水深水温记录仪
electric bathythermograph
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
海洋深水钻井液
marine deep water drilling fluid
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
深孔水压爆破
deep hole hydraulic blasting
deep-hole water pressure blasting
深孔水压爆破法
Deep hole water pressure blasting
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