aerial view, circular structure, water treatment, Langfang, China, top-down, industrial design, environmental facility, wastewater management, infrastructure, aerial photography

aerial view, circular structure, water treatment, Langfang, China, top-down, industrial design, environmental facility, wastewater management, infrastructure, aerial photography
aerial view, circular structure, water treatment, Langfang, China, top-down, industrial design, environmental facility, wastewater management, infrastructure, aerial photography
Public Domain

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