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There are very strict codes on removing, drilling or notching load bearing walls and floor joist.
有非常严格的代码去除,或缺口钻进墙壁和地板承载桁架。
youdao
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There are very strict codes on removing, drilling or notching load bearing walls and floor joist.
有非常严格的代码去除,或缺口钻进墙壁和地板承载桁架。
youdao