near-bit reamer 近钻头扩孔器 ; 近钻头扩大器
bit reamer 近钻头扩孔器 ; 锥铰刀 ; 锥形铰刀
reamer r bit 扩孔钻头
Diamond bit and reamer shell 金刚石钻头与扩孔器
bit pilot reamer 导向扩钻钻头
near-bit t reamer 近钻头扩孔器
The frame is mainly used to after installation, to support a top attractions, also can install a bit, reamer hole processing, etc.
尾架主要用来安装后顶尖，以支撑较长工件，也可安装钻头、铰刀等进行孔加工。
Pangolin also develop and produce a complete range of soil non-excavation drill, including Bit-oriented, sub-actuators, Drum-type Reamer, Flow-type Reamer, Plate-type Reamer, Adjustable joints.
我公司同样开发生产了规格齐全的土层非开挖钻具，包括导向钻头、分动器、筒式扩孔器、流道式扩孔器、板式扩孔器、变径接头等。
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