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一种管式土钉支护结构

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First Author:jiajinqing

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

Application Number:CN201820293469.2

Authorization Date:2018-03-02

Authorization number:CN208136918U

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