Preinsulated bonded pipe systems for underground hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing polyethylene; German version EN 489:1994— 10 стр.
District Heating Pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene; German version EN 253:2003/A2:2006— 7 стр.
Specification and approval of welding procedures for metallic materials - Part 1: General rules for fusion welding (including Amendment A1:1997); German version EN 288-1:1992 + A1:1997— 9 стр.
Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1:2007); Trilingual version EN ISO 6520-1:2007— 58 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 489:2003— 25 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 489:2003— 25 стр.