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            These books are included in Project Gutenberg. They are archived and can be improved at GITenberg.
        
        
        
        
        
keyword: physical and mechanical properties – 0 free books.
         These books are included in Project Gutenberg. They are archived and can be improved at GITenberg.
        
            These books are included in Project Gutenberg. They are archived and can be improved at GITenberg.