Author: Martha


When it comes to choosing between spiral lockseam pipe and straight-seam lockseam pipe for your metal duct work, you should consider several factors.   1. Straight-seam pipe is smoother and therefore avoids any buildup in crevices that is more likely to Read more…


In many ways, round metal duct work is more economical than rectangular metal duct work as a means of conveying air. 1) Size: For a given pressure loss, the surface area of rectangular duct can be double the comparable round duct surface Read more…

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