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.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Road construction - Surfacings with hydraulic binders— 21 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Road construction - Surfacings with hydraulic binders— 23 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Road construction - Surfacings with hydraulic binders— 21 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Road construction - Surfacings with hydraulic binders— 21 стр.