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氣彈簧的原理 |
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點(diǎn)評(píng)
國家標(biāo)準(zhǔn)是壽命要達(dá)到3W次,一般國產(chǎn)平均使用壽命:6W次。
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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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