Look for your local metal supplier, 6061-T6 is used everywhere including roadsigns. Angle is quite common and the corner radi are usually generous.
http://www.airpartsinc.com/ http://www.airpartsinc.com/products/Aluminum-angle.htm
- KR> 6061 T-Bar thomas brady
- KR> 6061 T-Bar Phillip Matheson
- KR> 6061 T-Bar Mark Langford
- KR> 6061 T-Bar CldLk-Tim
- KR> 6061 T-Bar Eric Pitts
- KR> 6061 T-Bar Mark Jones
