Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of intangible assets	3 Months Ended
	Jun. 30, 2020
Business license [Member]
Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of intangible assets [Line Items]
Estimated useful lives (Years)	15 years
Land use right [Member]
Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of intangible assets [Line Items]
Estimated useful lives (Years)	46 years
Backlog [Member]
Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of intangible assets [Line Items]
Estimated useful lives (Years)	1 year