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Inventories (Tables)
9 Months Ended
Sep. 30, 2012
Inventories  
Schedule of inventories

 

 

 

September 30,

 

December 31,

 

 

 

2012

 

2011

 

Raw materials

 

$

623,101

 

$

609,150

 

Supplies

 

272,036

 

251,716

 

Work-in-progress

 

85,497

 

106,609

 

Finished goods

 

228,445

 

232,109

 

Total inventories

 

$

1,209,079

 

$

1,199,584