1721| 5
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今日所學(xué)(5)-不銹鋼石墨纏繞墊 |
評(píng)分
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點(diǎn)評(píng)
不需要很高吧?一般化工用的法蘭面貼合即可
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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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