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有哪種非金屬不導(dǎo)電的材料可以加工0.5毫米厚,,溫度800度左右的 |
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小黑屋|手機(jī)版|Archiver|機(jī)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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