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INCOME TAXES (Details)
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Hong Kong      
Income Tax Disclosure [Line Items]      
Applicable tax rate 16.50% 16.50% 16.50%
PRC      
Income Tax Disclosure [Line Items]      
Applicable tax rate 25.00% 25.00% 25.00%
Preferential income tax rate 0.00%