发布时间:2025-02-03 23:58:49
楼梯灯光怎么选择安装位置
1.斜45°向外出光
2.斜45°向外里光
3.垂直向下出光
砖混结构的墙体发现其构造柱因混凝土漏振导致柱子底部高约10公分深约21公分是空的问题严重吗
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