Flexible HVAC ductwork was first patented in 1965; however, the underlying technology has been used for more than 150 years in the form of flexible air hoses for connecting train cars, flexible metal ...
HVAC uses of flexible air duct have grown exponentially over the last two decades, all over North America. Contractors and installers say they like it, and some find it indispensable. It has changed ...
Mueller Industries, Inc. MLI recently announced that it has entered into a contract to acquire the Flexible Duct business of Hart & Cooley, LLC. The buyout, which is subject to certain regulatory ...
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