Inventories (Details)	12 Months Ended
	Jun. 30, 2020 USD ($)
Inventory Disclosure [Abstract]
Nonmonetary sales and purchases amount	$ 43,537,582
Inventories, description	For the fiscal year ended June 30, 2020, total inventories decreased $63,092,808, or 38.9%, to $98,921,081 from $162,013,889 for the fiscal year ended June 30, 2019. This decrease was mainly due to the decrease in raw materials which is from $102,268,620 to $43,177,071. In the second and third quarters of fiscal year 2020, the bad weather lasted a long time in Pinggu, which is a mountainous area where Gufeng locates. The frequent rainfall and snowfall caused the damaged of Gufeng’s warehouse.
Comprehensive loss of raw materials	$ 39,643,198