Getting something for nothing is rare, but by switching from traditional rectangular ductwork to spiral, you can do just that. Spiral ductwork is cheaper to install and cheaper to use throughout the ...
Five global HVAC sheet metal fabrication giants have joined forces after Spiral-Helix, Inc. acquired Vicon Machinery, LLC and Plasma Automation, Inc. Spiro International SA and Spiral-Helix, Inc. have ...
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