Links
| National Association of Manufacturers | www.nam.org |
| Association of Equipment Manufacturers | www.aem.org |
| Manufacturers Resource Center | www.mrcpa.org |
| Metal Service Center Institute | www.msci.org |
| US Department of Commerce | www.commerce.gov |
| The Aluminum Association | www.aluminum.org |
| American Society for Testing and Materials | www.astm.org |
| Indiana Manufacturers Association | www.imaweb.com |