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v3.19.3

Concentration and Major Customers and Suppliers (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 Supplier | Sep. 30, 2018 Supplier | Sep. 30, 2019 Supplier Customer | Sep. 30, 2018 Supplier Customer
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Number of major supplier | Supplier | 4 | 3 | 3 | 3
Number of customer | Customer |  |  |  |
Sales [Member] |  |  |  |
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Percentage of concentration risk | 10.00% | 10.00% |  |
Supplier One [Member] |  |  |  |
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Percentage of concentration risk | 71.00% | 86.00% | 77.00% | 85.00%
Supplier Two [Member] |  |  |  |
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Percentage of concentration risk | 13.00% | 7.00% | 10.00% | 4.00%
Supplier Three [Member] |  |  |  |
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Percentage of concentration risk | 4.00% | 3.00% | 4.00% | 3.00%
Supplier Four [Member] |  |  |  |
Concentration and Major Customers and Suppliers (Textual) |  |  |  |
Percentage of concentration risk | 4.00% |  |  |

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