Echo Engineering and Production Supplies, Inc. has announced the acquisition of Ammex Plastics, a full-service plastic components manufacturer, based in Monroe, Mich., near Detroit, and primarily serving the automotive industry. Echo Engineering, headquartered in Indianapolis, provides diverse industries with both custom and catalog parts. Moving forward, Ammex Plastics will operate under Echo’s umbrella, as Echo Engineering and Production Supplies, Inc. DBA Ammex Plastics.