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[节点详图]l型楼梯洞口钢结构封堵方案(cad图)
![[节点详图]l型楼梯洞口钢结构封堵方案(cad图)](https://i.ssjz.top/upload/1/img2.baidu.com%2fit%2fu%3d3108228892%2c775358952%26amp%3bfm%3d253%26amp%3bfmt%3dauto%26amp%3bapp%3d138%26amp%3bf%3dJPEG%3fw%3d500%26amp%3bh%3d390 "洞口预埋钢环详图,")
[节点详图]l型楼梯洞口钢结构封堵方案(cad图)
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[节点详图]某防雷预埋铁节点构造详图(2)
板面洞口:pvc排水管,采用预埋件.
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[节点详图]常用预埋件节点构造详图
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