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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2011
Estimated Useful Lives of Property Plant and Equipment

are expensed as incurred. Depreciation is computed on the straight-line method for financial reporting purposes using the following estimated useful lives:

 

Buildings and improvements

     15 to 30 years   

Machinery and equipment

     3 to 30 years   

Land-use rights

     30 years