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Deferred Tax, Net (Tables)
3 Months Ended
Mar. 31, 2021
Deferred Tax Assets Liabilities Net Disclosure [Abstract]  
Schedule of deferred tax liability
   2021   2020 
Accrued expenses  $69,525   $70,019 
Write-off Erdos TCH net investment in sales-type leases   5,954,586    6,155,300 
US NOL   310,424    254,035 
PRC NOL   10,934,511    10,849,690 
Total deferred tax assets   17,269,047    17,329,044 
Less: valuation allowance for deferred tax assets   (17,269,047)   (17,329,044)
Deferred tax assets, net  $-   $-