精密深孔钻孔工具
precision deep hole drilling tool
冲击式深孔钻机
long-hole percussive machine
大直径深长钻孔灌注桩
large-diameter bored cast-in-situ deep and long pi
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
deep-hole drill by internal chip removal
BTA deep-hole cutter
深护筒钻孔灌注桩
bored pile of deep guard barrel
深基础回转钻孔灌注桩
rotatory boring cast-in-place pile