Summary of Significant Accounting Policies (Tables)

6 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Schedule of useful life of property, plant and equipment

Asset category	Residual value rate	Useful live
Machinery	5%	10 years
Electric equipment	5%	3~5 years
Office equipment	5%	5 years
Vehicles	5%	4 years
Leasehold improvement cost	5%	3~10 years