发布时间:2025-02-06 21:48:37
直接扣在龙骨上怎么也不安全,尤其如果彩钢房处在风口的话就更危险了,我们村有家的彩钢顶就被掀飞了,最好还是用长螺钉拧上。
对混凝土有腐蚀的地质土氯离子多硫酸根离子多分别使用什么水泥可以起到防腐蚀的作用
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