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