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Inventories (Tables)
6 Months Ended
Mar. 31, 2013
SCHEDULE OF INVENTORIES [Table Text Block]
    September 30,     March 31,  
    2012     2013  
             
Raw materials $ 19,999,192   $ 15,819,566  
Work-in-progress   13,912,685     11,342,605  
Finished goods   31,471,952     27,484,022  
             
  $ 65,383,829   $ 54,646,193