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...DTH drilling rig adopts an excellent motor, which has the characteristics of high efficiency, convenient operation, low investment and high economic benefit. Widely used in slope support, quarry, water conse...
.... Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled, which means carbides shape are...
Tophammer drilling Together these elements make it possible to drill holes in the hard rock. The excess material (cuttings) is flushed up from the bottom of the hole by means of pressurized air or water. Top ha...