1971 Following the successful market launch of cBN grinding wheels (from 1969), the grinding tools department with 30 employees is relocated to a new production hall in nearby Herrstein. By Robert Beetz|2019-03-20T07:28:10+01:00July 9th, 1971|history_en|Comments Off on 1971 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail About the Author: Robert Beetz