World Cement
St Mary's Cement Company at Bowmanville, Ontario, started their new 5000 tpd production line in June/July, 1991. Smidth installed the line on a turnkey basis. United States . Ash Grove Cement West Inc. As mentioned in our May 1991 issue, the installation of the new 2200 stpd cement plant at Seattle is currently on schedule (May 1992 ...