L to r: Hartmut Schramm (Manager, Rinn), Henning Scholtz (Management Umwelt RAL gGmbH), Christian Rinn (Managing Director, Rinn), Outi Ilvonen (Staff, UBA) and Dr. Alexander Janz (Head of Department, UBA)
Source: Rinn GmbH
Presentation of the certificate
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Short link: www.uba.de/m89135en