GREVIE, Sweden, May 2, 2023 /PRNewswire/ -- Lindab acquires the British company Firmac Ltd, which is the European leader in machines for manufacturing of rectangular ventilation ducts. Through its ...
This article originally appeared in the Spiral Duct Manufacturers Association insert in the January 2017 issue of SNIPS magazine. There are several factors that a designer should consider when ...
We have written before that round spiral duct should be your first choice for a rooftop HVAC duct system. The round shape reduces snow accumulation and accelerates rain runoff compared to rectangular ...
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