ESCO Corporation is a global manufacturer of engineered metal wear parts and components for industrial applications. Since 1913, the privately held company has been headquartered in Portland, Oregon, USA, and currently has more than 4,500 employees and 25 manufacturing sites throughout the world.
See also:
www.escocorp.com/index.html
Wikipedia article:
http://en.wikipedia.org/wiki/ESCO_CorporationCategory:
manufacturer metal