Manufacturers

http://www.hutchscasting.com/

http://www.rwmfg.com/index.asp

resources:
http://www.jckonline.com/article/285859-Can_U_S_Jewelry_Manufacturers_Survive_.php

http://www.americanjewelrymfg.com/about-wholesale-jewelry.htm

https://wendybrandes.com/blog/2010/01/get-smart-about-manufacturing/

http://www.ibisworld.com/industry/default.aspx?indid=888