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緊固件GB/T5783 M8*60(s17)-A2-70中的s17(s小寫(xiě))是指螺栓的哪個(gè)參數(shù)? |
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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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