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Intangible Assets, Net (Details) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Summary of intangible asset    
Deposit for land use right $ 1,248,434 $ 1,215,480
New product technology, net 488,433 475,540
Other 7,689 1,330
Gross 1,744,556 1,692,350
Less: Accumulated amortization (598,367) (454,325)
Intangible assets, net $ 1,146,189 $ 1,238,025