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Inventories
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
The components of inventories at December 31 were as follows:
 20202019
Raw materials and supplies$128.4 $125.1 
Work in process28.2 30.9 
Finished products82.2 76.0 
Inventory reserves(40.4)(33.4)
 $198.4 $198.6