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看到一个一体式气缸的铸造(采用套缸形式),技术很棒,贴图讨论 |
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发表于 2017-8-28 15:22:33
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小黑屋|手机版|Archiver|京ICP备17056826号|蒸汽小火车&蒸汽船舶模型论坛
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