Michael Thomas
01-25-2008, 06:32 AM
Single web-page guide to pipe materials, types, designations and applications / uses:
Ace (http://www.acehardware.com/sm-learn-about-pipes-fittings-and-valves--bg-1267591.html)
Ace (http://www.acehardware.com/sm-learn-about-pipes-fittings-and-valves--bg-1267591.html)