Optart Electronics
Manufacturer and exporter of electronic weighing machines, price computing balances, weigh bridges, load cells, platform balances.
http://www.optart.com

Kamal Group
We are a group of companies engaged in manufacturing sophisticated high precision equipment and machinery for over 3 decades. We offer the most sophisticated range of weighbridges and weighing machines, available in the country today. We are pioneer in manufacturing tensile tester and electronic universal testing machine in India. We also offer a wide range of textile testing equipment, mini offset printing machines, high speed needle looms for narrow fabric. Today over 8,000 organizations in India rely on our equipments. Users include Indian Space Research Centres, BARC, NPL, Indian Standard Institutions, Defence Laboratory Railways and scores of other institutions and private-public sector undertakings. KMI also exports machines to foreign countries like Africa, Bangladesh, Russia, Sri Lanka, UAE, Vietnam etc.
http://kmigroup.net/

Avery Weigh-Tronix Inc.
Avery Weigh-Tronix: manufacturer of industrial scales and weighing equipment including load cells, portable truck scales, checkweighers, lift truck scales, and weight indicators, Avery Weigh-Tronix: manufacturer of industrial scales and weighing equipment including load cells, portable truck scales, checkweighers, lift truck scales, and weight indicators
http://www.wtxweb.com/

Material Dynamics
Specialist in bag filling machines and equipments, packaging machines, bagging machines, weigh and pack machines, bag fillers, fill and weigh machines.
http://www.matdynamics.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/

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

Historic Bridges of Michigan and Elsewhere
Nathan Holth offers information, photographs, and maps for historic bridges, particularly metal truss bridges in the United States and Canada, notably Michigan and Ontario.
http://www.historicbridges.org/

Bridges 1893 - 1999
A timeline gallery of bridges designed by the HNTB Corporation.
http://bridges.hntb.com/3_time.htm

Bridges - Christchurch City Libraries
These images of early Christchurch and Canterbury have been digitised from the collections of Christchurch City Libraries. They have been sourced from newspapers, archives, books, reports and donations from private collections.
http://library.christchurch.org.nz/heritage/Photos/Bridges.asp