Duct Silencer Overview
26:14
HVAC Training - Terminal Silencers
22:18
Webinar Recording: Duct Silencers – Types, Performance and Proper Application
10:21
HVAC Training - Basics of HVAC
9:57
Sound Absorption
1:28:57
Fundamentals of Sound Workshop Session 2 - Acoustic Analysis and Silencer Selection
33:46
Lamento não ter aprendido esse segredo aos 50 anos! eu morreria sem saber
13:17
HVAC Ductwork Basics! Trunk Duct Fittings, Elbows, Names, Sizes!
20:23