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BS EN 12050-4:2001

Заменен
Wastewater lifting plants for buildings and sites. Principles of construction and testing. Non-return valves for faecal-free wastewater and wastewater containing faecal matter — 18 стр.
ICS
13.060.30 Sewage. Including sewage water disposal and treatment / Сточные воды. Включая удаление и очистку сточных вод
91.140.80 Drainage systems / Дренажные системы