American Foundry Society - afsinc.org
Steel Founders Society of America - sfsa.org
Valve Manufacturers Association of America - https://www.vma.org/
ValveMagazine - valvemagazine.com
Valve World - valve-world.net
Hydraulic Institute - http://pumps.org/
ASTM International – astm.org
ASME (American Society of Mechanical Engineers) – asme.org
Modern Casting (magazine) – moderncasting.com
Foundry Management & Technology (Magazine) – foundrymag.com
NACE International – nace.org
Haynes International – haynesintl.com
Special Metals Corp. – specialmetals.com
And don't forget Badger Alloys' interactive Alloy Search tool!
