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| 活塞用铅合金 (alloy) | |||
| 科比塔留姆耐热铝合金 (Cobitalium 2： 1 ~ 5Cu, 7 ~ 15Si, 0.2 ~ 1.0Cr, 0.5 〜1.5Mg, 0.05~0.13Ti,余量Al) | |||
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| 活塞用铝合金 (alloy) | |||
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