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Property, Plant and Equipment
3 Months Ended
Mar. 31, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment
Depreciation expense on property, plant and equipment of $22,214 and $22,157 is included in cost of sales in the consolidated statements of operations for the three months ended March 31, 2019 and 2018, respectively.