Институт Водных Проблем И Мелиорации Национальной Академии Аграрных Наук Украины
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A drainage collector in constricted conditions of construction and close bedding of underground waters comprises in its bottom a closed drain of horizontal type for underground water withdrawal.
UAU201114230U2011-12-012011-12-01Drainage collector with drain
UA75000U
(en)