![Circling-aerial-drone-of-T-Park-Sludge-Waste-Treatment-Facility-in-Tuen-Mun](https://v7.cdnpk.net/videvo_files/video/happy/premium/partners0061/thumbnails/BB_1266913e-b4ab-4762-974b-16383fbff107_small.jpg)
Circling aerial drone of T Park Sludge Waste Treatment Facility in Tuen Mun
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