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Advances to Suppliers, Net (Details Textual) | 12 Months Ended
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Dec. 31, 2018
Advances to Suppliers, Net [Abstract] |
Construction material, description | It usually takes 3 to 6 months for the suppliers to deliver raw material for our equipment production and takes up to 6 to 12 months for the suppliers to deliver the construction materials.

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- Definition Description of construction material. + References No definition available. + Details
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