Posted inDuct Sizing Duct Sizing by Velocity Reduction Method Posted by By Aung Myat Thu December 13, 2021 ဤသင်ခန်းစာသည် member ဝင်ထားသူများအတွက်သာ ဖြစ်ပါသည်။ Aung Myat Thu I am founder of this website and I have working experiences 15 years + in HVAC industry. View All Posts Post navigation Previous Post Duct Sizing Example (Constant Velocity Method)Next PostVelocity Reduction Method Lecture