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Advances to Suppliers, Net (Tables) | 12 Months Ended
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Dec. 31, 2018
Advances to Suppliers, Net [Abstract] |
Schedule of advances to suppliers |
|  | December 31, 2018 |  |  | December 31, 2017 |
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 |
|  |  | 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

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