產(chǎn)品尺寸
| SIZE | D1 | D2 | L |
| 25×19 | 25.4 | 19.1 | 38 |
| 38×25 | 38.1 | 25.4 | 50 |
| 50×38 | 50.8 | 38.1 | 67 |
| 50×25 | 50.8 | 25.4 | 67 |
| 63×50 | 63.5 | 50.8 | 67 |
| 63×38 | 63.5 | 38.1 | 67 |
| 76×63 | 76.3 | 63.5 | 67 |
| 76×50 | 76.3 | 50.8 | 67 |
| 89×76 | 89.1 | 76.3 | 67 |
| 89×63 | 89.1 | 63.5 | 67 |
工業(yè)標(biāo)準(zhǔn)有：ISO、DIN、IDF、3A 等。
