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2020-05-18
The 2014 annual memorabilia
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2020-05-18
Warmly celebrate for the fifth secondary workers representatives congress an
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2020-05-18
Weifang Lu Tai Convention and Exhibition Center completed and put into
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2020-05-18
Live in Weifang -- live Changda front-line staff living story
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2020-05-18
To speed up Lu Tai Convention and Exhibition Center construction process with p
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2020-05-18
New Propaganda Film of Changda Construction Group
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2020-05-18
The first session of the 16th National People's Congress (NPC) successfully con
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2020-05-18
Changda version《the small apple》
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2020-05-18
Chairman of the board of directors Xu Pengqiang elected as standing committee m
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2020-05-16
项目经理培训
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2020-05-16
建筑节能45个问答
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2020-05-16
低碳时代，我们准备好了吗？
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2020-05-16
无电池应急灯具自动切换供电施工技术
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2020-05-16
地漏连接件式技术的研究和应用
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2020-05-16
LONWORKS技术在消防应急照明和疏散指示系统中的应用
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