rock drilling मीनिंग इन हिंदी

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Ovako also produces steels for mining, rock drilling and construction applications.
In the beginning of the 1980s Atlas Copco was the world leader in rock drilling and pneumatics.
The two shafts were timbered in 1885 and a " Eclipse " rock drilling plant was acquired in 1887.
In rock drilling, the hole is usually not made through a circular cutting motion, though the bit is usually rotated.
Today, Sandvik sold its 25 percent stake in Tampella's rock drilling unit Tamrock for 325 million markkaa ( $ 69.15 million ).
Today, Sandvik sold its 25 percent stake in Tampella's rock drilling unit Tamrock for 325 million markkaa ( $ 69 . 15 million ).
The on-site manufacture of nitroglycerin was thus required for the remaining hard-rock drilling and blasting required for the completion of the First Transcontinental Railroad in North America.
Companies in Canada that offer drilling services like Major Drilling include : Black Rock Drilling, Foraco Drilling, Orbit Garant, Energold Drilling Energold, Boart Longyear Boart Longyear, G4, and more.
According to the Kyodo report, Mohammed left Japan with about 150 rock drilling machines bought with unknown financial resources and started a repair shop for the machinery in Afghanistan.
The army was looking into ways to build installation foundations on the ice, and Boudette's background in rock drilling for dam installations made him an ideal candidate for test drilling in the icecap.