Statement of Cash Flows - USD ($)	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss from continuing operations	$ (1,129,252)	$ (4,663,958)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation expense	1,218,587	1,093,832
Provision for obsolete inventories	113,155	999,548
Loss (gain) on disposition of property and equipment	19,842	(23,065)
Recovery of bad debt reserve	0	(329)
Stock issued for employees' compensation	0	715,553
Accounts receivable and notes receivable	245,898	(148,347)
Accounts receivable - related party	(672,440)	(51,581)
Inventories	(1,542,338)	(2,164,379)
Prepaid expenses and other current assets	807,924	(318,519)
Accounts payable and accrued expenses	2,735,478	(1,274,960)
Taxes payable	147,574	(53,087)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES FROM CONTINUING OPERATIONS	1,944,428	(5,889,292)
Net loss	(1,382,683)	(4,908,360)
Loss from discontinued operations	(253,431)	(244,402)
NET CASH PROVIDED BY OPERATING ACTIVITIES FROM DISCONTINUED OPERATION	214,123	444,606
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	2,158,551	(5,444,686)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceed from disposal of discontinued operations	1,143,380	0
Purchases of property and equipment	(1,774,962)	(2,360,145)
Proceed from disposal of equipment	5,059	3,260
NET CASH USED IN INVESTING ACTIVITIES FROM CONTINUING OPERATIONS	(626,523)	(2,356,885)
NET CASH USED IN INVESTING ACTIVITIES FROM DISCONTINUED OPERATION	0	(72,700)
NET CASH USED IN INVESTING ACTIVITIES	(626,523)	(2,429,585)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from loans	943,288	5,868,928
Repayment of short term loans	(514,521)	(429,795)
Advance from related parties	7,977,435	4,564,183
Repayment of related party advances	(9,043,962)	(984,472)
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES FROM CONTINUING OPERATIONS	(637,760)	9,018,844
NET CASH USED IN FINANCING ACTIVITIES FROM DISCONTINUED OPERATION	0	(1,003,033)
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES	(637,760)	8,015,811
EFFECT OF EXCHANGE RATE ON CASH	(50,548)	76,742
NET INCREASE IN CASH	843,721	218,282
Cash and Cash Equivalents, at Carrying Value, Beginning Balance	294,199	75,917
Cash and Cash Equivalents, at Carrying Value, Ending Balance	1,137,920	294,199
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION:
Cash paid for interest	197,889	146,689
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment acquired on credit as payable	9,661	263,041
Accrued interest converted into debt	260,239	1,347,067
Accrued interest payable to related parties	15,864	15,900
Liabilities assumed in connection with sale of discontinued operations	3,558,770	0
Liability converted to additional paid-in capital	$ 10,126,121	$ 0