Badger Industries
Manufacturer of stainless steel and alloy bellows type, round and rectangular expansion joints, which are used primarily in piping systems that exhibit thermal motion.
http://www.badgerind.com/

E-Poxy Industries, Inc
Supplier of evazote expansion joints systems for parking structures, waste water treatment plants and bridges.
http://www.e-poxy.com/

Ekspan Ltd.
Supply and install mechanical and elastomeric bearings, expansion joints and industrial sliding bearings for bridges and structures. United Kingdom .
http://www.ekspan.co.uk

Capital Services of NY, Inc
Manufacturer of expansion joints for parking garages, bridges and water treatment plants. The company also provides a full line of epoxy injection equipment and elastomeric concretes.
http://www.capitalservicesny.com/

BraunFlex, LLC
Manufactures round and rectangular shaped expansion joints in metal, rubber and fabric. Products include metal hose assemblies, pump connectors, ball joints and slip packed expansion joints .
http://www.braunflex.com/

Bridges to the Past: Alabama's Covered Bridges
Public TV program featuring Alabama's historic covered bridges.
http://www.alabamatv.org/bridges/

NRS AS
NRS AS - Bridge Building Equipment
http://www.nrsas.com/

All Power Transmission Inc.
Designing universal joints and mechanical power transmission coupling components to fit your challenging requirements.
http://www.allpowertrans.com/

Covered Bridges of Maine
The Department of Transportation presents a history of the state's covered bridges and a tour via clickable map: photographs and information on the 9 surviving bridges.
http://www.maine.gov/mdot-stage/covered-bridges/wooden.php

Asia Star Co., Ltd.
Provides engineering and consultancy service for expansion joints, flexible metal hoses, fabric joints and valves.
http://asiastar.netfirms.com/