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| No. B1 |
| raw material: 20Cr |
| center distance: 56 |
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| No. B27 |
| raw material: 45# |
| center distance: 73 |
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| No. B31 |
| raw material: 45# |
| center distance: 68.96 |
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| No. B44 |
| raw material: 45# |
| center distance: 101.7 |
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| No. B45 |
| raw material: 60# |
| center distance: 62 |
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| No. B46 |
| raw material: 45# |
| center distance: 78 |
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| No. B47 |
| raw material: 45# |
| center distance: 100.5 |
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| No. B47-1 |
| raw material: 45# |
| center distance: 100.5 |
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