青云翻译

Coal mining is the process blasting gun, which is characterized by blasting off the coal, coal blasting descendants tooling, mechanized coal, working with single pillar supporting the roof space.

Blast mining is blast-winning technology, which is characterized by coal blasting, blasting coal for future generations tools, mechanized coal, with a single prop supporting space roof.

The artillery picks demolishes the mining coal craft, its characteristic is explodes declines the coal, after the demolition the manual coaling, the mechanization transports the coal, supports and protects the working space roof with the monomer prop.

coal mining is blasting gun craft, which was characterized after blasting Lok coal, blasting artificial coal, mechanized coal, used monomer pillars support Care Working space top plates.

Blast mining is blast-winning technology, which is characterized by coal blasting, blasting coal for future generations tools, mechanized coal, with a single prop supporting space roof.