Duro Dyne Corp.
New York, USA Duro Dyne Corp. is a manufacturer of sheet metal accessories and equipment for the heating, ventilating & air conditioning industry. Our supply division offers flexible duct connector, insulation fasteners, screws & rivets, adhesives & sealers and air regulation hardware. Our machinery division manu More...
www.durodyne.com

Simpson Sheet Metal, Inc.
California, USA Simpson Sheet Metal, Inc. offers residential and commercial heating & air-conditioning systems. Our products include central air conditioners, humidifiers, heat pumps, gas furnaces, thermostats and air cleaners. We design and install multiple roof-top units, square duct & spiral duct. More...
www.simpsonsheetmetal.com

Arzel Zoning Technology, Inc.
Ohio, USA Arzel Zoning Technology, Inc. specializes in the production of retrofit zoning products. We deliver dampers for all sizes and configurations of ductwork. We develop HeatPumPro™, which is the first integrated control panel and zoning solution for high efficiency heat pumps. More...
www.arzelzoning.com