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...
With the advanced technology from both China and abroad, the production line of the picks is a continuous chain step furnace, composed of a welding furnace, a quenching furnace and a tempering furn...
We carried out a complete reformation for Threaded Products Workshop from Apr.5th to May 15th. In the new workshop, we installed double layers of thermal insulation, double glazed windows and new d...
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 ...
Bullet Teeth: The New Generation of Rotary Drilling Teeth
A new type of rotary drilling teeth is taking the drilling industry by storm. Known as bullet teeth, these innovative tools are designed to...
Down the hole (DTH) drilling bits are a cutting-edge innovation revolutionizing drilling operations in the mining and construction industries. These versatile, high-performance bits, also known as ...