Prefabricated concrete and reinforced concrete manholes and inspection chambers - Part 10: Brick manhole bases for buried drains and sewers; requirements and testing— 5 стр.
Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers - Dimensions and technical delivery conditions— 16 стр.
Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 10: Brick manhole bases for buried drains and sewers - Requirements and testing— 10 стр.
Prefabricated concrete manholes, unreinforced, steel fibre and reinforced - Part 10: Brick manhole bases for buried drains and sewers - Requirements and testing— 10 стр.