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Inventories
6 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES
We used the last-in, first-out (LIFO) method of valuing inventories for 47 percent and 43 percent of total inventories at December 31, 2014 and June 30, 2014, respectively. Since inventory valuations under the LIFO method are based on an annual determination of quantities and costs as of June 30 of each year, the interim LIFO valuations are based on our projections of expected year-end inventory levels and costs. Therefore, the interim financial results are subject to any final year-end LIFO inventory adjustments.
 
Inventories consisted of the following: 
(in thousands)
December 31, 2014
 
June 30, 2014
Finished goods
$
362,979

 
$
371,599

Work in process and powder blends
286,841

 
308,129

Raw materials
110,756

 
126,004

Inventories at current cost
760,576

 
805,732

Less: LIFO valuation
(97,693
)
 
(101,966
)
Total inventories
$
662,883

 
$
703,766