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Advances to Suppliers, Net (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Advances to Suppliers, Net [Abstract]    
Raw material prepayments for equipment production $ 2,686,314 $ 916,210
Construction material prepayments 2,776,638 1,037,438
Advances to construction subcontractors 405,203 428,334
Subtotal 5,868,155 2,381,882
Less: allowances for doubtful accounts (871,030) (534,245)
Less: Advances to suppliers, net, related party (Note 15) 947,557
Advances to suppliers, net, third parties $ 4,049,568 $ 1,847,637