Personal protective equipment against falls from a height; guided type fall arresters on a flexible anchorage line; german version EN 353-2:1992— 5 стр.
Prefabricated accessories for roofing - Permanently fixed roof ladders - Product specification and test methods; German version EN 12951:2004, Corrigenda to DIN EN 12951:2005-02— 2 стр.
German construction contract procedures - Part C: General technical specifications for building works - Systems for heating and central water heating— 28 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.