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Summary of Significant Accounting Policies (Details 3)
12 Months Ended
Dec. 31, 2018
Land use rights [Member] | Maximum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets estimated useful lives 49 years
Land use rights [Member] | Minimum [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets estimated useful lives 45 years
Software [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets estimated useful lives 10 years