6301| 15
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六角棒,硬度HRC48-52,直线度0.1/1000的加工工艺 |
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点评
用六角钢,圆钢加工更控制不住
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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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