1. Mining: Mountain opening, mining, mesh
crushing, secondary crushing;
2. Metallurgy: cleaning of ladle and
slag, dismantling of furnace body and equipment
foundation;
3. Railway: Mountain opening,
tunnel excavation, road and bridge demolition,
subgrade compaction;
4. Highway: highway repair,
cement pavement breaking, foundation
excavation;
5. Municipal Garden: concrete
crushing, water, electricity, gas engineering
construction, old city
reconstruction;
6. Buildings: demolition of old
buildings and crushing of reinforced
concrete;
7. Ship: hull descaling and
derusting;
8. Others: ice breaking, frozen
soil breaking, sand mold
vibration