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Inventories
3 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories Inventories

Inventories, net consist of:
 
 
June 30, 2019
 
March 31, 2019
Raw materials
 
$
138,886

 
$
138,718

Work-in-process
 
123,416

 
129,736

Finished goods
 
257,813

 
235,415

Total
 
$
520,115

 
$
503,869