Questions and Answers about Drilling

Main characteristics of DTH drilling rig:* DTH Drilling rigs drill by air dth hammer, which is characterized by submersible holes. * The DTH Hammer uses compressed air to do work, which makes the piston produce high frequency (1500 times / min) impingement. The high energy pis... more

Bloomberg released a bombshell, Canadian mining giant barrick gold company has been through a wholly owned subsidiary acquired one thousand shares of newmont mining companies in the United States, Australia, bankers said barrick planned $19 billion acquisition of newmont this could be one of the ... more