Diameter (mm) Segment Size(mm) Pcs/Set structure 350 40*3.2*12 24 single 400 40*3.8*12 28 single 450 38/40*4.2*10 32 single 500 38/40*4.2*10 32 single600 40*4.8*10 42 single700 40*5.2*10 50 single800 40*6*10 58 single Diameter (mm) thickness Segment Size(mm) Pcs/Set(Multi) 1000 4.5 24*5.8/6.4*12 92 1200 5.5 24*6.8/7.4*12 80 1600 6.5/7.2 24*7.8/8.4*12 108 1600 6.5/7.2 24*8.0/8.6*12 1081600 6.5/7.5 24*8.4/9.0*12 108 1600 6.5/7.2 24*8.6/9.2*12 108 2000 7.2 24*9.0/9.6*12 128 2000 7.2 24*9.4/10.0*12 128 2200-3500 8.0/10.0 22*11/11.6*13/15 140/160/180