DIN EN 16506:2014-12 Systems for renovation of drains and sewers - Lining with a rigidly anchored plastics inner layer (RAPL); German version EN 16506:2014
2014DIN EN 16506:2014-12 Systems for renovation of drains and sewers - Lining with a rigidly anchored plastics inner layer (RAPL); German version EN 16506:2014
2014DIN EN 16506:2014 Systems for renovation of drains and sewers - Lining with a rigidly anchored plastics inner layer (RAPL); German version EN 16506:2014