Pottorff
Manufacturer of Product for HVAC
http://www.pottorff-hvac.com

Metropolitan Air Technology, Inc.
Metropolitan Air Technology
http://www.rototwist.com/

Ace Controls International
Ace Controls International, the world leader in motion control, supplies shock absorbers, rotary dampers, hydraulic dampers and feed controls and gas springs
http://www.acecontrols.co.uk/

Louvers & Dampers
Louvers, Dampers
http://www.louvers-dampers.com/

Vulcan Dampers and Expansion Joints
Experienced, qualified supplier of dampers and expansion joints to world wide industrial firms. Precision engineering and custom designs.
http://vulcandampers-joints.com/

Automax Controls
Automation systems for valves and dampers.
http://www.automax-usa.com/

Fluidampr
Fluidampr performance harmonic dampers add horsepower and torque to race, street and truck engines.
http://www.fluidampr.com/

NCA International Group
Manufacturer of sheet metal accessories for HVAC systems
http://www.ncamfg.com/

Safe-Air Dowco
The Damper and Louver Manufacture and Supply
http://www.safeair-dowco.com/

MCM Steel, Inc.
Design and manufacture of heavy duty industrial dampers and expansion joints.
http://www.dampex.com