Short-term loan payable Table (Details) - USD ($)	Jan. 31, 2018	Apr. 30, 2017
Details
Loan from Min Wu at 10%	$ 34,983	$ 29,005
Loan from Jianjun Yan at 10% A	1,400,711	1,161,354
Loan from Jianjun Yan at 10% B	1,192,596	1,450,242
Loan from Junzhen Zhang	25,442	21,754
Loan from Jian Chen	159,013	145,024
Loan from Qing Kong A	76,962	63,811
Loan from Qing Kong B	31,803	0
Loan from Guihai Chen0318	19,082	15,953
Loan from Guihai Chen0918	31,803	0
Loan from Weifeng Kong	31,803	29,004
Loan from Shidong Wang	1,590,128	1,450,242
Total Short Term Loan Payable	$ 4,594,326	$ 4,366,389