11.
hirlwind designs and manufactures a complete line of Metal Building Systems and Metal Building Components
12.
Menzies Metal Products Ltd.
manufacturer & distributor of building products: stock flashings, steel building flashings, steel building products, ventilation products, plumbing, flashings, heating flashing."
http://www.menzies-metal.com/
13.
MBCI
A leading manufacturer of standing seam roofing systems, metal roof and wall systems.
http://www.mbci.com/