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certificate
| Quality-assurance system for environmental management in accordance with EN ISO 14001:2004 |
Version: 2012 |
Date: 06.12.2012 |
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| Quality-assurance system in accordance with EN ISO 9001:2008 |
Version: 2012 |
Date: 06.12.2012 |
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| Safety-management system for our employees in accordance with the Safety Certificate Contractors (SCC) |
Version: 2011 |
Date: 12.04.2011 |
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