3 links
Euclid Chemical Co
euclidchemical.com
Maker of chemicals and aggragates for the concrete industry. Free quarterly newsletter in PDF (Adobe Acrobat) form.
Mr. Heater Corporation
mrheater.com
Manufacturer of portable propane forced air and convection heaters, wall-mounted and overhead natural gas and propane heaters.
The Builders Exchange
bxcleve.com
Provides construction reporting, online databases, and other services for the construction industry.