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Inventories
12 Months Ended
Oct. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES

Inventories consisted of the following at:
 
 
October 31, 2019
 
October 31, 2018
 
 
 
 
 
Raw materials
 
$
2,801,255

 
$
2,339,767

Spare parts and supplies
 
3,384,360

 
3,118,195

Work in process
 
743,850

 
752,454

Finished goods
 
437,891

 
1,858,275

 Total
 
$
7,367,356

 
$
8,068,691



The Company recorded a lower of cost or net realizable value write-down on inventory of approximately $21,000 and $239,000 for the fiscal years ended October 31, 2019 and 2018, respectively.