| 1. | 3 8 " air drill speed 800rpm air spot drill
枪型点焊去除钻最高1800rpm
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| 2. | Russia criticizes iranian air drills near nuclear plant
俄罗斯批评伊朗在核电站附近举行防空演习
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| 3. | Study of development coalbed methane using air drilling technology in jincheng area
用空气钻井开发晋城煤层气技术研究
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| 4. | Piston air drill
活塞式风动凿岩机
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| 5. | Misted air drilling
雾化空气钻井
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| 6. | Edium - duty air drills
中型气钻
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