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5. Inventories
12 Months Ended
Jun. 30, 2022
5. Inventories  
Inventories

5. Inventories

 

 

 

2022

 

 

2021

 

Raw materials

 

$3,298,300

 

 

$2,170,400

 

Work-in-process

 

 

55,300

 

 

 

39,600

 

Finished goods

 

 

1,342,700

 

 

 

767,100

 

 

 

$4,696,300

 

 

$2,977,100