Alabama and Michigan foundries have DART rates of ‘zero’ Ferrous foundry group Grede Holdings LLC reports that its plants in Bessemer, AL, and Kingsford, MI., have passed the “1 million man-hours” mark without a lost-time accident (LTA). Grede Holdings operates 13 gray and ductile iron foundries and machine shops in the U.S., and two foundries in Mexico. "This safety milestone from these two Grede…