Pyongyang, January 20 (KCNA) -- According to Rodong Sinmun, the Mining Engineering Institute of the Academy of Coal Mining Science developed a Korean-style hydraulic rotary drill.

The completion of this advanced drill for different uses laid another foundation for realizing the comprehensive mechanization of pit works at coal mines.

It was scientifically and objectively proved that all indices of the hydraulic rotary drill, including its speed and energy efficiency, conform to the international level and it is worth introducing it into many other coal mines and mines across the country.

The drill draws the attention of visitors at the exhibition of sci-tech achievements in different sectors of the national economy-2025. -0-