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NOTE 6. INVENTORIES: Schedule of Inventory (Details) - USD ($)
Sep. 30, 2025
Mar. 31, 2025
Details    
Raw materials $ 1,667,650 $ 1,608,632
Work in process 3,326,526 3,609,273
Finished goods 2,424,667 2,231,178
Inventories, net $ 7,418,843 $ 7,449,083