Taxes (Details) - Schedule of taxes payable - USD ($)	Jul. 31, 2021	Jul. 31, 2020
Schedule of taxes payable [Abstract]
Value added tax payable	$ 18,104	$ 73,031
Income tax payable	39,253	584,503
Other taxes payable	660	2,582
Total taxes payable	$ 58,017	$ 660,116

No definition available.

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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