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食品线上的 316L 与 304：分界在哪一段 https://download.bbc7.cn/shuangqumian-baozhu 2014-03-19T09:30:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-592.svg 双曲面不锈钢包柱：木模、锤子和三张废板 https://download.bbc7.cn/kangzhiwen-tuceng 2014-05-20T10:15:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-593.svg 抗指纹涂层两年后：不沾指纹，也别指望耐磨 https://download.bbc7.cn/suanxi-feishuizhan 2014-07-15T09:50:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-594.svg 酸洗废水站该多大：按带出量算，不按车间面积 https://download.bbc7.cn/youyan-jinghua-dianchang 2014-08-19T10:20:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-595.svg 油烟净化器的电场：油桥、打火和碱洗的度 https://download.bbc7.cn/jiejiang-hufengqiang 2014-09-16T09:45:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-596.svg 制药洁净车间的回风墙：板缝、圆角与 2B 面 https://download.bbc7.cn/weixin-fatu-xiadan 2014-11-11T09:35:00+08:00 monthly 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货架标称承重200公斤：我们压塌过一次 https://download.bbc7.cn/baoban-jiguanghan-yaobian 2016-07-19T09:45:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-613.svg 薄板激光焊的咬边：一条焊缝两边都塌下去 https://download.bbc7.cn/mentao-muwen-zhuanyin 2016-03-08T10:10:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-614.svg 门套做木纹转印：附着力卡在前处理那一步 https://download.bbc7.cn/lenggui-neidan-xuanban 2016-11-08T09:35:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-615.svg 冷柜内胆用什么板：压花铝、304和镀锌的账 https://download.bbc7.cn/gongxiang-bangong-geshuan 2017-01-17T09:40:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-616.svg 共享办公的金属隔断：三米通高玻璃怎么固定 https://download.bbc7.cn/diandu-gutong-zuojiu 2017-02-21T10:10:00+08:00 monthly 0.6 https://download.bbc7.cn/templates/themes/Walter/assets/covers/art-617.svg 电镀古铜的做旧深浅：擦色三遍为什么不匀 https://download.bbc7.cn/feixing-jiancha-wuxiang 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