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Inventories (Tables) | 12 Months Ended
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Mar. 31, 2020
Inventory Disclosure [Abstract] |
Schedule of Inventory, Current | Inventories consisted of the following:
|  | March 31,
|  | 2020 |  | 2019
At cost—FIFO basis: |  |  |  |
Raw materials |  | $ | 85,452 |  |  | $ | 88,786 |
Work-in-process |  | 25,876 |  |  | 32,547 |
Finished goods |  | 33,216 |  |  | 40,523 |
|  | 144,544 |  |  | 161,856 |
LIFO cost less than FIFO cost |  | (17,171 | ) |  | (15,593 | )
Net inventories |  | $ | 127,373 |  |  | $ | 146,263 |

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