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...
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 ...
We take customization requests upon provided samples or drawings.such as Step Shank Chisels,Flat Teeth,HDD Weld-On Teeth,Round Shank Bits,Road Milling Tools,Road Milling Picks,and etc.
We produce f...
newest top hammer tooling, the Drifter series of rods and bits. designed with a unique thread profile for added endurance and strength in the most demanding tunneling, bolting and drifting applica...
HTF MI recently Announced Global Top Hammer Drilling Tools study with 100+ market data Tables and Figures spread through Pages and easy to understand detailed TOC on “Top Hammer Drilling Tools. Glo...
Pangolin Project was finished on Feb.28th, 2014. After almost 10 months of adjustment, this tapered rod production line is the best in China.
1.Continuous operation of 7 operators in forging proces...