Door frames - Steel door frames - Part 1: Standard door frames (single or double shell) for rebated doors in masonry and for metal stud gypsum walls— 21 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Painting and coating work— 23 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Dry lining and partitioning work— 26 стр.