The pneumatic percussion rotary drilling is mainly operated in the area where liquid is hardly or not permitted to be used as the circular medium.
气动冲击回转钻进主要应用于难用或忌用液体作为循环介质的地区。
2
Can be widely used in mining the use of electric, pneumatic, hydraulic bolt drilling products mines, railway tunnels, metallurgical engineering and other industries.
能广泛服务于矿用使用电动、气动、液压锚杆钻机产品的矿山、铁道隧道、冶金工程等行业。
3
The trenchless pneumatic hammers which don t rotate themselves during drilling include impact moles, pipe ramming hammers and pipe bursting hammers.