Preinsulated bonded pipe systems for underground hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 488:1994— 7 стр.
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.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 488:2003— 16 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 488:2003— 16 стр.