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                  Laser Crystal Ltd.
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                  Distributor of nonlinear laser crystals and other laser optical components.
                   
                  
                  
                   
                  
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                  AFG Industries, Inc.
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                  Manufacturer of glass for residential, commercial, and industrial uses.  Located in Kingsport, Tennessee.
                   
                  
                  
                   
                  
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                | 4.  | 
                
                  
                  Glasslinks
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                  Glass industry links and information, including auto glass, flat glass, windows and doors.
                   
                  
                  
                   
                  
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                | 5.  | 
                
                  
                  Changxing Changsheng Group Co. Ltd.
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                  Specializes in  glass manufacturing and deep-processing and production of three primary color light tubes and energy-saving lamps. From China.
                   
                  
                  
                   
                  
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