District heating pipes - Pre-insulated flexible pipe systems - Part 3: Non bonded system with plastic service pipes - requirements and test methods; German version EN 15632-3:2010/prA1:2013
District heating pipes - Pre-insulated flexible pipe systems - Part 3: Non bonded system with plastic service pipes - requirements and test methods; German version EN 15632-3:2010+A1:2014— 11 стр.
