6462| 20
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觸指加工,,求助 |
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點評
讀帖不仔細,,沒看到“用內(nèi)徑150mm,,壁厚3mm的管坯加工而成”?
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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