Fire classification of construction products and building elements - Part 1: Classification using data from reaction to fire tests (includes Amendments A1:2009)— 55 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of central heating systems and hot water supply systems— 27 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of central heating systems and hot water supply systems— 28 стр.
German construction contract procedures - Part C: General technical specifications for building works - Systems for heating and central water heating— 28 стр.
