Summary of Significant Accounting Policies (Tables)

3 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Schedule of disaggregated revenue from contracts with customers

	For the three months ended
	June 30, 2020		June 30, 2019
The United States	$	21,316,863	$	23,827,782
China		217,052		-
Total	$	21,533,915	$	23,827,782

Schedule of intangible assets at cost

	Estimated useful lives (years)
Business license		15
Land use right		46
Backlog		1