ND580 Bit Shank Borewell Hammer With Lower Air Consumption Description When percussion or hammer drilling the percussion mechanism is called a DTH or ...
Forging Alloy Steel DTH Hammer For Water Well Drilling Description When percussion or hammer drilling the percussion mechanism is called a DTH or down ...
Description Widely used in geotechnical engineering to wear all kinds of hard in the hard, hard and other hard to drill tough rock. The low-pressure ....
Description Using the new rock drilling theory to design the internal structure of the impactor, the impactor obtains the ideal energy transfer, the ....