1. The quarrying and mining industry (mining chunk of blocks, chunks of blocks divided, remove chunks of waste rock, etc.)
2.Construction engineering (tunneling, underground tunnel excavation, artificial river mining, artificial rivers, rock digging ditches, etc.)
3.Demolition works (concrete and reinforced concrete demolition, demolition of old buildings, old pier demolition, etc.)
4.Chemical, metallurgical production and overhaul works (smelting furnace overhaul, various kiln bricks construction demolition materials engineering, etc.)
5, the various rescue and relief (earthquakes, mine clearing and other work, traffic accidents rescue work)
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