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一种沟槽槽口支护结构、施工方法及沟槽浇注方法
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Affilication of Author(s):土建与水利学院
Patent Applicant:jianghongguang
Type of Patent:发明
Application Number:201811092893.1
Number of Inventors:2
Service Invention or Not:no
Application Date:2018-09-18
Application Date:2018-09-18
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