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Open pit mining of construction sand stone materials.
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- mining industry
- quarry
- mining
- coal mine
- gravel
- stone rocks
- metallurgy
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- ore
- manufacturing plant
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- industrial factory
- factory
- chemical factory
- raw material
- chemical plant
- industrial plant
- manufacturing
- manufacturing industry
- industrial engineering
- stone
- rock
- pebbles
- coal
- chemical industry
- production process
- construction materials
- facility
- production
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- bulldozer
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- excavator
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