5577| 23
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2个空心钢管套在一起,用螺栓紧固,内外套之间有3-5毫米缝隙 |
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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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