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+Article 2 (47) |
Article 2 (47)‘ventilation shaft’ means a vertical passage used to move fresh air underground or to remove methane and other gases from an underground coal mine; 1. Ħarsa ġenerali
1.1 Referenzi1.2 Rekwiżiti identifikati1.3 Standards relatati2. Rekwiżiti identifikati
3. Standards relatati
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