Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water ...
In Top Hammer Drilling the hammer produces a percussive force on the drill rods or tubes, which is transmitted to the drill bit. The global Top Hammer Drilling Tools market is valued at xx million ...
We are thrilled to announce our professional production of high-quality button bits. Our button bits are specifically designed for drilling in tough and demanding conditions, making them the top c...
Here in the United States we used to refer to tunneling by drill-and-blast as “conventional” tunneling, which I guess leaves tunneling by TBM or other mechanized means to be referred to as “Unconve...
In order to get out of the school, better social contact, understand social, training exercise their own talent, set up the service consciousness of the society, at the same time, better the textbo...
Mar. 3rd – 4th, 2016, one customer of South Africa visited our company for the pick production line. Our picks had good and reliable performance in the test and in great demand in South Africa.
Th...