Category talk:Wastewater treatment constructions
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What is this category about? What is the meaning of the word "construction" in this sense?.--Juan de Vojníkov (talk) 09:00, 29 September 2010 (UTC)
What is this category about? What is the meaning of the word "construction" in this sense?.--Juan de Vojníkov (talk) 09:00, 29 September 2010 (UTC)[reply]