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Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets

Intangible assets, net mainly consist of the following:

 

   

December 31,

2020

   

December 31

2019

 
Land use rights   $ 1,016,215     $ 952,455  
Patents     417,919       391,697  
Subtotal     1,434,134       1,344,152  
Less: accumulated amortization for patents     (310,393 )     (234,456 )
Accumulated amortization for land use right     (149,045 )     (120,644 )
Subtotal     (459,438 )     (355,100 )
Intangible assets, net   $ 974,696     $ 989,052  
Schedule of Intangible Assets Amortization Expense

Estimated future amortization expense for intangible assets is as follows:

 

December 31,  

Total

amortization

expense

 
2021   $ 55,198  
2022     55,198  
2023     55,198  
2024     29,043  
2025     20,324  
Thereafter     759,735  
Total expense   $ 974,696