In the late 1990s, J.M. Brennan, Inc. only had three fabrication workers and less than 12 field installers. However, as a sign of the Milwaukee, Wisconsin-based mechanical contractor’s steady growth, ...

Magnesium alloys are considered to be in the vanguard of advanced materials. They are lightweight, with a density of 1.8 g/cm 3, (approximately two thirds that of aluminium alloys) and have the ...

Many HVAC distributors didn’t waste time passing along price increases that they blamed on the new 25 percent tariff on imported steel entering the U.S. How can contractors deal with these increases ...