Laser welding thin wall bit is characterized by high welding strength of bit teeth, no falling out of the teeth and mass production by non water dry drilling.

激光焊接薄壁钻头的显著特点是钻齿焊接强度高，不掉齿，可以用于无水干钻，便于实现大批量规模化生产。

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For bedrock drilling ordinary hard alloy driller can be adopted for vertical core-drilling with the addition of clear water during rotation. for overburden dry drilling process can be adopted.

基岩钻探方法以采取普通硬质合金清水回转垂直取心钻进，覆盖层采用干钻。

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This company mainly produces various series of drilling screw with tapping screw dry wall screw fiber board screw self - tapping screw machine screw all kinds of non-standard goods.

公司主要生产各系列的自钻自攻螺钉、干壁钉、纤维板钉、自攻螺钉、机螺钉及各种非标准产品。

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Chesapeake Energy tacked on 6.3% after the natural-gas producer said it plans to further reduce dry-gas drilling activity by 50% and to curtail its gross gas production by about 8% in response to a drop in natural-gas prices.

WSJ: Dow Breaks Its Win Streak

By 1967 he was broke, having sunk all his cash into wildcat wells, drilling mostly dry holes.

FORBES: Magazine Article

Mr Kloppers said the writedown on the Fayetteville assets was also a reflection of BHP's decision to change course and shift drilling from dry gas to liquid-rich fields.

BBC: BHP Billiton in $3.3bn writedown as gas prices plunge