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5 . A construction method of air pressure balanced shield machine, which is characterized in that it includes the following steps: water spraying step: water...
But after several years of development, we also feel that great changes have taken place in China’s construction industry . The second way: call or...
3 . Welding rod: E43 welding rod is used to weld hpb300 reinforcement and hpb400 reinforcement; E55 welding rod is used to weld HRB400 reinforcement...
The net assets of the enterprise are more than 40 million yuan . According to the document Jian ban Shi [2018] No . (4) There...
The section with grade IV surrounding rock is excavated by arc heading bench method . Good ventilation and adequate lighting . 4、 NATM is adopted...
The general contractor shall be responsible for the reserved hole and outgoing line connection of primary metering box. . Residential central air conditioning engineering; 11...
/ wechat: 181-0257-0516 new rural construction street lamp project rural market street lamp project rural reconstruction street lamp project highway project municipal road project urban...
After the completion of the preparation, the technical management process of the general contractor shall be subject to corresponding approval and audit . For the...
