DIN 4034-2:2013 Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 2: Manholes for well construction and drain construction
2013DIN 4034-2:2013-05 Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 2: Manholes for well construction and drain construction
2013DIN 4034-2:2013 Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 2: Manholes for well construction and drain construction
1990DIN 4034-2:1990 Precast unreinforced and reinforced concrete components for well shafts and soakaways; dimensions and technical delivery conditions