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                M8*16,20,25,30,35,40,45,50,55,60,65,70,75,80
                M10*25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100
                M12*30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,110,120
                M14*40,45,50,55,60,65,70,75,80,85,90,95,100,110,120,130,140
                M16*45,50,55,60,65,70,75,80,85,90,95,100,110,120,130,140,150,160

                M20*60,65,70,75,80,85,90,95,100,110,120,130,140,150,160,170,180,190,200

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