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Inventories (Tables) | 9 Months Ended
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Mar. 31, 2018
Inventory Disclosure [Abstract] |
Inventories | Inventories consisted of the following:
(in thousands) | March 31, 2018 |  | June 30, 2017
Finished goods | $ | 304,313 |  |  | $ | 290,817 |
Work in process and powder blends | 217,659 |  |  | 166,857 |
Raw materials | 88,792 |  |  | 87,627 |
Inventories at current cost | 610,764 |  |  | 545,301 |
Less: LIFO valuation | (73,559 | ) |  | (57,620 | )
Total inventories | $ | 537,205 |  |  | $ | 487,681 |

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