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air drill 風鉆。

3 8 “ air drill speed 800rpm air spot drill 槍型點焊去除鉆最高1800rpm

air drome

Edium - duty air drills 中型氣鉆

Misted air drilling 霧化空氣鉆井

Piston air drill 活塞式風動鑿巖機

Study of development coalbed methane using air drilling technology in jincheng area 用空氣鉆井開發晉城煤層氣技術研究

Russia criticizes iranian air drills near nuclear plant 俄羅斯批評伊朗在核電站附近舉行防空演習

3 8 “ air drill speed 800rpm air spot drill 槍型點焊去除鉆最高1800rpm