内径 (英寸) | 内径 (毫米) | 米/卷 |
1 | 25 | 4 |
1-1/2 | 38 | 4 |
2 | 51 | 4 |
2-1/2 | 63 | 4 |
3 | 76 | 4 |
3-1/2 | 90 | 4 |
4 | 102 | 4 |
4-1/2 | 115 | 4 |
5 | 127 | 4 |
6 | 152 | 4 |
6-1/2 | 165 | 4 |
7 | 178 | 4 |
8 | 203 | 4 |
10 | 254 | 4 |
12 | 305 | 4 |