Note 6 - Related Party Transactions: Schedule of Related Party Transactions (Details) - USD ($)	Jan. 31, 2018	Apr. 30, 2017
Details
Due to Pharmaceutical Corporation	$ 1,336,203	$ (30,568)
Due to Qufu Shengwang	126,676	21,878
Due to Weidong Chai	161,621	134,002
Due to Laiwang Zhang	397,532	0
Total Due to Related Party	2,022,032	$ 125,312
Working capital advances from related parties - Shangdong	4,191,461
Working capital advances from related parties - Qufu	465,863
Working capital advances from related parties - Weidong Chai	13,745
Working capital advances from related parties - Laiwang Zhang	397,532
Working capital advances from related parties	5,068,601
Repayments from related parties - Shandong	(2,865,717)
Repayments from related parties - Qufu	(386,273)
Repayments from related parties - Weidong Chai	0
Repayments from related parties - Laiwang Zhang	0
Repayments from related parties	(3,251,990)
Effect of foreign currency exchange - Shangdong	41,027
Effect of foreign currency exchange - Qufu	25,208
Effect of foreign currency exchange - Weidong Chai	13,874
Effect of foreign currency exchange - Laiwang Zhang	0
Effect of foreign currency exchange	$ 80,109