American Gas Furnace Company
American Gas Furnace Company designs and manufactures Heat Treating Furnaces and related equipment.
http://www.amgasfur.com/

Flinn & Dreffein Engineering Co.
Designs and builds large heat treat furnaces for the metals industry. Includes car bottom, walking beam, slat conveyor, and roller or rotary hearth types. Site incorporates examples.
http://www.flinndreffein.com

Materials Research Furnaces, Inc.
MRF,Inc: High-temperature vacuum - gas furnaces for the production industry and R-D world for applications ranging from Annealing to Vapor deposition.
http://www.mrf-furnaces.com

HI T.E.Q. Furnaces
Full service manufacturers of furnaces and related equipment for the aluminum processing industry. Photos and detailed descriptions of product line.
http://www.hiteqfurnaces.com

Materials Research Furnaces, Inc.
MRF,Inc: High-temperature vacuum - gas furnaces for the production industry and R-D world for applications ranging from Annealing to Vapor deposition.
http://www.mrf-furnaces.com

Recco Furnaces
Recco Furnaces a division of Keith Company
http://www.reccofurnaces.com

Keith Company
Keith Company is a full-service supplier of process heating equipment and related materials and technical support services.
http://www.keithcompany.com

Tuthill Vacuum & Blower Systems
Manufacturer of rotary piston, liquid ring, dry and rotary vane vacuum pumps, and rotary positive blowers for industrial and trucking applications. Based in the US (IL).
http://vacuum.tuthill.com/

Dynatech ETC Furnaces Inc.
Dynatech Engineering is a professional, specialist and focused furnace manufacturing company based at Mumbai (Bombay) with over a decade of furnace manufacturing experience. We offer a full range of Furnaces for various heat treatment applications like hardening, annealing, brazing & sintering applications.
http://www.vacuumfurnace.com/

DMS Inc.
Manufacturers of rotary tooling and equipment including rotary embossing dies and rotary hot stamping dies.
http://www.dmsdies.com/