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         Button size lignes(L) or millimeter(MM) for diameter 
        1Lignes=0.625 MM   1MM=1/25 INCH 
        
          
            
              12L=7.5 MM =5/16" 
                13L=8.0 MM =5/16" 
                14L=9.0 MM =11/32" 
                15L=9.5 MM =3/8" 
                16L=10.0 MM =13/32" 
                17L=10.5 MM =7/16" 
                18L=11.5 MM =15/32" 
                20L=12.5 MM =1/2" | 
              22L=14.0 MM =9/16" 
                24L=15.0 MM =5/8" 
                26L=16.0 MM =21/32" 
                28L=18.0 MM =23/32" 
                30L=19.0 MM =3/4" 
                32L=20.0 MM =13/16" 
                34L=21.0 MM =27/32" 
                36L=23.0 MM =7/8" | 
              40L=25.0 MM =1" 
                44L=28.0 MM =1-3/32" 
                45L=30.0 MM =1-3/16" 
                54L=34.0 MM =1-5/16" 
                60L=38.0 MM =1-1/2" 
                64L=40.0 MM =1-9/16" | 
             
          
         
         
        Remarks: Measurement of lignes is not exactly 100% equal to MM. 
        Button Diameter: 
          
        For Button Size,Measure the outer largest diameter 
        Buckle: 
          
        Measure inside diameter for Belt use 
        NOTE: 
        For general.USAGE,INCH or MM is for buckle,as for button,lignes or MM
        is used. 
         
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