Loans (Details 2) - USD ($)		Sep. 30, 2020	Dec. 31, 2019
Advance from related parties		$ 407,831	$ 399,149
Other short-term loans		5,269,367	7,351,587
Advances from unrelated third party		5,269,367	7,351,587
Mr. Xiangqian Li, the Company's Former CEO [Member]
Advance from related parties	[1]	100,000	100,000
Mr. Yunfei Li [Member]
Advance from related parties	[2]	218,943	212,470
Shareholders [Member]
Advance from related parties	[3]	88,888	86,679
Mr. Wenwu Yu [Member]
Advances from unrelated third party	[4]	30,903	30,135
Mr. Longqian Peng [Member]
Advances from unrelated third party	[4]	662,739	646,273
Mr. Shulin Yu. [Member]
Advances from unrelated third party	[5]	530,191	517,018
Jilin Province Trust Co. Ltd [Member]
Advances from unrelated third party	[6]	3,564,065	5,687,204
Suzhou Zhengyuanwei Needle Ce Co., Ltd [Member]
Advances from unrelated third party	[7]	$ 73,638	$ 71,808

[1] Advances from Mr. Xiangqian Li, the Company's former CEO, was unsecured, non-interest bearing and repayable on demand.

[2] Advances from Mr. Yunfei Li, the Company's CEO, was unsecured, non-interest bearing and repayable on demand.

[3] The earnest money paid by certain shareholders in relation to share purchase (note 1) were unsecured, non-interest bearing and repayable on demand. In 2019, according to the investment agreements and agreed by the investors, the Company returned earnest money of $949,317 (approximately RMB6.7 million) to these investors.

[4] Advances from unrelated third parties were unsecured, non-interest bearing and repayable on demand.

[5] On June 25, 2019, the Company entered into a loan agreement with Mr. Shulin Yu, an unrelated party, to loan RMB3.6 million (approximately $0.5 million) for a term of one year, bearing annual interest of 10% which was guaranteed by Mr. Yunfei Li (the Company's CEO) and Mr. Wenwu Wang (the Company's former CFO). On June 22, 2020, the Company and Mr. Shulin Yu entered into a supplemental agreement to extend the loan for one year to June 24, 2021. As of September 30, 2020, the Company borrowed RMB3.6 million (approximately $0.5 million).

[6] In January 2019, the Company obtained one-year term facilities from Jilin Province Trust Co. Ltd. with a maximum amount of RMB40.0 million (approximately $5.9 million), which was secured by land use rights and buildings of Eodos Liga Energy Co., Ltd. Under the facilities, the Company borrowed a total of RMB39.6 million ($5.7 million) in 2019, bearing annual interest from 11.3% to 11.6%. The Company fully repaid the loan principal and accrued interest in March 2020. In March 2020, the Company obtained additional one-year term facilities from Jilin Province Trust Co. Ltd with a maximum amount of RMB40.0 million (approximately $5.9 million), which was secured by land use rights and buildings of Eodos Liga Energy Co., Ltd. Under the facilities, the Company borrowed RMB24.2 million ($3.6 million) on March 13, 2020, bearing annual interest of 13.5%.

[7] In 2019, the Company entered into a short term loan agreement with Suzhou Zhengyuanwei Needle Ce Co., Ltd, an unrelated party to loan RMB0.6 million (approximately $0.1 million), bearing annual interest rate of 12%. As of September 30, 2020, loan amount of RMB0.5 million ($73,638) remained outstanding.