Statement of Cash Flows - USD ($)	9 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (1,373,216)	$ (3,314,410)
Loss from discontinued operations	(253,431)	(122,686)
Net loss from continuing operations	(1,119,785)	(3,191,724)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation expense	901,684	824,360
Loss on disposition of property and equipment	49,476	0
Stock issued for employees' compensation	0	715,553
Accounts receivable and notes receivable	1,558,140	317,184
Accounts receivable - related party	(237,913)	148,367
Inventories	(1,165,364)	(1,325,510)
Prepaid expenses and other current assets	99,101	(1,275,165)
Accounts payable and accrued expenses	1,113,308	(2,680,623)
Taxes payable	47,704	(79,249)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES FROM CONTINUING OPERATIONS	1,246,351	(6,546,807)
NET CASH (USED IN) DISCONTINUED OPERATING ACTIVITIES FROM DISCONTINUED OPERATIOIN	(340,629)	(143,019)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	905,722	(6,689,826)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceed from disposal of discontinued operations	1,145,180	0
Purchases of property and equipment	(1,389,304)	(692,593)
Proceed from disposal of equipment	30,474	0
NET CASH (USED IN) INVESTING ACTIVITIES FROM CONTINUING OPERATIONS	(213,650)	(692,593)
NET CASH (USED IN) INVESTING ACTIVITIES FROM DISCONTINUED OPERATIOIN	0	(23,595)
NET CASH (USED IN) INVESTING ACTIVITIES	(213,650)	(716,188)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from loans	429,443	5,788,134
Repayment of short term loans	0	(429,299)
Advance from related parties	4,980,422	3,589,014
Repayment of related party advances	(6,215,431)	(666,121)
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES FROM CONTINUING OPERATIONS	(805,566)	8,281,728
NET CASH (USED IN) FINANCING ACTIVITIES FROM DISCONTINUED OPERATIOIN	0	(1,899,418)
NET CASH PROVIDED BY FINANCING ACTIVITIES	(805,566)	6,382,310
EFFECT OF EXCHANGE RATE ON CASH	(24,196)	57,639
NET (DECREASE) IN CASH	(137,690)	(966,065)
Cash and Cash Equivalents, at Carrying Value, Beginning Balance	294,199	75,917
Cash in discontinued operations at the beginning of year	0	1,024,831
Cash and Cash Equivalents, at Carrying Value, Ending Balance	156,509	134,683
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION:
Cash paid for income taxes	0	0
Cash paid for interest	79,193	80,675
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment acquired on credit as payable	62,767	1,587,468
Accrued interest converted into debt	127,330	144,761
Accrued interest payable to related parties	16,930	39,776
Liabilities assumed in connection with sale of discontinued operations	$ 3,565,805	$ 0