Reduction of siliceous dust in accordance with Decree No. 97-331 of April 10, 1997 relative to the protection of certain workers exposed to siliceous dust inhalation in the workplace.
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| - Dust containment of a secondary crusher |
- Dust containment of a primary crusher |
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| - Exhaustively sealed conveyor lines with TRANSPAR |
- TRANSPAR sealing system installation under a screen |
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| - Exhaustively sealed and depressurized conveyor installation |
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