| 数量 No.of seg  | 长度 Length(mm)  | 外径 Outer diameter | 宽(mm) Width  | 高(mm) Height  | |
| 英制 Inch | 公制mm | ||||
| 20 | 40 | 12 | 300 | 3.0 | 8/10 | 
| 24 | 40 | 14 | 350 | 3.2 | 8/10 | 
| 28 | 40 | 16 | 400 | 3.4 | 8/10 | 
| 32 | 40 | 18 | 450 | 4.0 | 8/10 | 
| 36 | 40 | 20 | 500 | 4.0 | 8/10 | 
| 42 | 40 | 24 | 600 | 4.2 | 8/10 | 
| 50 | 40 | 28 | 700 | 4.8 | 8/10 | 
| 48 | 40 | 32 | 800 | 6.0 | 8/10 | 
| 64 | 24 | 36 | 900 | 6.5 | 10/12 | 
| 70 | 24 | 40 | 1000 | 7.5 | 10/12 | 
| 80 | 24 | 48 | 1200 | 8.0 | 10/12 | 
| 100 | 24 | 60 | 1500 | 9.0 | 10/12 | 
| 108 | 24 | 64 | 1600 | 9.0 | 10/12 | 
| 128 | 24 | 80 | 2000 | 10.0 | 12 | 
| 160 | 24 | 120 | 3000 | 13.0 | 12 |