2851| 2
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設(shè)計(jì)一個(gè)氣體(包含H2S)通道零件,用什么工程塑料好? |
點(diǎn)評(píng)
肯定不是手誤,絕對(duì)是看上你了:-)
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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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