Ductile Iron Society. Promoting the production and application of ductile iron castings. http://www.ductile.org/

Fabricators and Manufacturers Association. Brings metal fabricators together through technology councils, conferences, networking opportunities, and industry awards. http://www.thefabricator.com/

IG Metall. Der IG Metall, the German metalworkers union. http://www.igmetall.de/

Instituto Tecnologico Metalmecanico. AIMME is a nonprofit research association for the metal processing industry. http://www.aimme.es/

International Metalworkers' Federation. Federation of national unions, representing more than 20 million blue- and white-collar workers in the metal industry in nearly 100 countries. http://www.imfmetal.org/

Metal Finishing Association. A trade association for the British metal finishing Industry. http://www.sea.org.uk/

Metall Organization. Metall, the Swedish Metalworkers Union has about members in the engineering and automobile industry, shipyards, steelworks, workshops, mines, forges, and so on. (In Swedish or English.) http://www.metall.se/

NAAMS Global Standard Components. Defines the components that have been adopted when designing and constructing stamping dies and body assembly tools for sheet steel body components. http://www.naamsstandards.org/

National Institute for Metalworking Skills, Inc. Nonprofit organization formed in 1995 to support the development of a skilled workforce for the metalworking industry. http://www.nims-skills.org/

National Metal Finishing Resource Center. Including a full-text technical database, regulations, online conferences, a vendor database and much more. http://www.nmfrc.org/

National Union of Metalworkers of South Africa The largest metalworkers union (and second largest trade union) in South Africa. http://www.numsa.org.za/

Precision Metalforming Association. Includes Metalforming Magazine. http://www.metalforming.com/

Steel Service Center Institute. SSCI serves as the voice of the steel service center industry. Its purpose is to enhance the financial return of member companies. http://www.ssci.org/