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一种微预应力管筋式土钉

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First Author:jiajinqing

Disigner of the Invention:朱大勇,Wang Hao,林青坤,高仁哲,杨国平,刘俊岩,王海涛,涂兵雄,gaojuncheng,niantingkai

Application Number:CN201820293085.0

Authorization Date:2018-03-02

Authorization number:CN208136912U

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