"ROLLER MILL" . "Chambers Science and Technology Dictionary Alt name IMPACT CRUSHER" . "u82237" . "1158881500" . "A mill which in its simplest form, consists of two rolls of suitable material, mounted with their axes horizontal, running in opposite directions; used for crushing and mixing operations." . . "RDS11588815" . "2002.01.02" . "Qualified" . "ROLLER MILL" .