[热点讨论]求助：焊缝口开挖方式 [复制链接]

cdddd:挡土墙外侧擅自挖坑倒塌亡人案例 6i*LP(n  
http://www.safehoo.com/Case/Case/Collapse/201506/398805.shtml (2021-01-12 22:33)  3qwSm<  

cdddd:环缝自动焊机 tz`T#9  
https://baike.baidu.com/item/%E7%8E%AF%E7%BC%9D%E8%87%AA%E5%8A%A8%E7%84%8A%E6%9C%BA/5856949?fr=aladdin }tUr V  
http://51sole1767073.51sole.com/ Ls(l  
http://www.drjc17.com/ &=hkB9 ;  
http://www.drjc17.com/Products-34920646.html =!P$[pN2  
....... (2021-01-13 07:52)  5u
&hp  

cdddd:环缝自动焊机 eL{6;.C  
https://baike.baidu.com/item/%E7%8E%AF%E7%BC%9D%E8%87%AA%E5%8A%A8%E7%84%8A%E6%9C%BA/5856949?fr=aladdin <^Sp4J  
http://51sole1767073.51sole.com/ yjj)+eJ(Q  
http://www.drjc17.com/ _1kcz]]F  
http://www.drjc17.com/Products-34920646.html ~Op~~ m  
....... (2021-01-13 07:52)  diDB>W  

cdddd:靠近楼房挖坑的安全距离安全知识 W9%B9~\G;+  
https://www.bbaqw.com/anquan/531529/ (2021-01-13 07:53)  z}f;_NX