Waste Water Engineering
In sewers the highest non-scouring velocity is achieved in

Stone ware sewers
Cast iron sewers
Cement concrete sewers
Glazed bricks sewers

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Waste Water Engineering
The stone ware sewers

Are manufactured from clays and shale
All listed here
Are used for carrying sewage and drainage from houses
After casting are dried and burnt at temperature 150°C, 700°C and 1200°C

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