Posted inDuct Sizing ASHRAE Duct Fitting Database Program အသုံးပြုပုံ Posted by By Aung Myat Thu December 18, 2021 ဤသင်ခန်းစာသည် member များအတွက်သာ 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 Pressure Loss Calculation (Return Duct & Fan Total Pressure)Next PostASHRAE 2017 Fundamentals (Duct Design)