Hoang Huy Ly

Hach HQ Serie + pH Intellical probe Hướng dẫn hiệu chuẩn

HACH 2100Q Máy đo độ đục cầm tay - Hướng dẫn hiệu chuẩn

Hach SC1000 Display Settings Demo

Binh Hung Wastewater treatment plant - Ho Chi Minh City, Viet Nam

Fireworks new year 2020 view Landmark 81 HCM Viet Nam

Water treatment: Discfilter - sludge extraction

Waste water treatment plant

Water treatment process - Producing domestic water from surface water of river

Water treatment process - Backwash water filter by sand

Water treatment process - Sludge treatment by belt filter press

Résiste - France Gall OST 20 ans d'écart

Happy.Feet first scene.avi