规格:
| 英寸 | Est。Wt. /英国《金融时报》。 |
| 3/8 | 0.44 |
| 1/2 | 0.67 |
| 5/8 | 1.04 |
| 3/4 | 1.5 |
| 7/8 | 2.04 |
| 1 | 2.67 |
| 1-1/8 | 3.38 |
| 1 1/4 | 4.17 |
| 1 - 1/2 | 6.01 |
| 2 | 10.68 |
| 2 | 13.52 |
| 2 - 1/2 | 16.69 |
| 4 | 20.2 |
| 3 | 24.03 |
| 3-1/4 | 28.21 |
| 3 - 1/2 | 32.71 |
| 4 | 42.73 |
| 4-1/4 | 48.23 |
| 4 1/2 | 54.26 |
| 4-3/4 | 60.45 |
| 5 | 66.76 |
| 5-1/4 | 73.85 |
| 半 | 80.78 |
| 5-3/4 | 88.29 |
| 6-1/4 | 104.31 |
| 7-1/4 | 140.36 |
| 81/4 | 181.75 |
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