微细孔钻削
Drilling of Small and Deep Hole
Micro-drilling
介孔-微孔复合材料
meso-microporous composite
介孔-微孔复合分子筛
meso-microporous composite zeolite
数控微孔钻床
NC micro bore drilling machine
大孔钻孔
big-diameter hole drilling
高效小直径深孔钻削系统
high efficiency drilling system for small and deep hole
精密深孔钻孔工具
precision deep hole drilling tool