工业标准有:ISO、DIN、IDF、3A、SMS等
 |
规格(ISO) | A | B | D | L | H |
| 20 | 50 | 78 | 19.05 | 130 | 82 | |
| 25 | 50 | 78 | 25.4 | 130 | 82 | |
| 32 | 50 | 78 | 31.8 | 130 | 82 | |
| 38 | 50 | 86 | 38.1 | 130 | 86 | |
| 51 | 52 | 102 | 50.8 | 140 | 96 | |
| 63 | 56 | 115 | 63.5 | 150 | 103 | |
| 76 | 56 | 128 | 76.1 | 150 | 110 | |
| 89 | 60 | 139 | 88.9 | 170 | 116 | |
| 102 | 64 | 154 | 101.6 | 170 | 122 | |
| 108 | 64 | 159 | 108 | 170 | 126 | |
| 133 | 80 | 138 | 133 | 190 | 138 | |
| 159 | 90 | 215 | 159 | 190 | 153 |
