Castings

The Aluminum Assoc.      
www.aluminum.org
Int'l Magnesium Assoc.
www.intlmag.org
Investment Casting Institute
www.investmentcasting.org
American Foundry Society
www.afsinc.org
Cast Metals Institute
www.castmetals.com/

Plastics

G.E. Plastics
www.ge.com/plastics/index.htm
Dow Chemical Co.
www.dow.com
Bayer Corp.
www.bayerus.com
DuPont
www.dupont.com

Materials

ASM Int' www.asm-intl.org
Alloy Info www.matweb.com
Steel Service Center Inst. www.ssci.org

Gas Springs

BIFMA Seating Information www.bifma.com
Occupational Safety & Health Admin. www.osha.gov