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Inventories
 12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventories Inventories
The following table sets forth the components of inventory:
 
December 31,
(In thousands)
2019
 
2018
Finished products
$
71,918

 
$
65,965

Work in process
4,083

 
6,169

Raw materials and supplies
151,129

 
124,554

Inventories at current cost
227,130

 
196,688

Less: LIFO valuation
(42,103
)
 
(40,086
)
Total inventories
$
185,027

 
$
156,602


Inventories stated on the LIFO basis represent 43% and 39% of total inventories at December 31, 2019 and 2018, respectively. We did not have any LIFO liquidations during the years ended December 31, 2019 and 2018.