9792| 19
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請(qǐng)教大家這是什么材料 |
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點(diǎn)評(píng)
對(duì),也有可能是尼龍
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點(diǎn)評(píng)
應(yīng)該是,耐熱耐磨自潤(rùn)滑
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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