DIN EN 13941:2009-02

Отменен

Design and installation of preinsulated bonded pipe systems for district heating; German and English version prEN 13941:2009

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DIN EN 448:2003-05

Отменен

District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 448:2003 — 29 стр.