Pípulagnaefni & Veituefni | vatnsvirkinn.is€¦ · DVGW CERT GmbH is an accredit body by...
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Pípulagnaefni & Veituefni | vatnsvirkinn.is€¦ · DVGW CERT GmbH is an accredit body by DAkkS according to DIN EN ISO/IEC 17065:2013 for certification of products for energy and