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此处螺母的作用 |
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点评
弯管切断和输送切断的原理相同……不过我没见过焊丝切断机,受教了……
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小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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