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Product specification: diameter 150mm guide diameter 64mm T38 thread

2023-08-24

Product specification: diameter 150mm guide diameter 64mm T38 thread Product features: ball tooth alloy edge 9 tooth G design


DTH drill diameter 190mm QL60 series

2023-07-31

DTH BIT Diameter 190mm QL60 Series


H22 H25 Series Products

2023-07-24

H22 H25 series products, taper connection drill rod, integral drill rod, drilling drill rod, tail drill rod Products used in tunnel boring, quarrying, mining, anchoring operations


Thread bit

2023-07-14

Diameter: 43mm Thread: R32 Features: Strong powder discharge capacity and fast footage. Products are used in tunnel boring, mining and anchoring operations


What is the reason for the abnormal fracture of the drill tail?

2023-06-30

The drill tail is a key part of the hydraulic rock drill to transmit rotation and impact energy. During the operation, it bears the complex load transmitted by the impact piston and rotary motor of the rock drill. The typical failure of the drill tail is usually abnormal fracture. Generally, the working time is less than 10 shifts, and the drill tail breaks at the root of the thread or the thread.


Taper drill rod overall carburizing process finished brazing rod, high-quality taper drill rod.

2023-06-27

Taper drill rod overall carburizing process finished brazing rod, high-quality taper drill rod.


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