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這個(gè)抱箍結(jié)構(gòu)內(nèi)側(cè)螺母的作用是什么? |
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點(diǎn)評(píng)
會(huì)不會(huì)是預(yù)設(shè)拉緊力的??jī)深^的兩個(gè)螺母距離是預(yù)設(shè)好的。防止擰緊時(shí)拉力不足或過(guò)大。
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