发布时间:2025-01-16 14:49:54
烟道止逆阀用透明玻璃密封胶、发泡胶均可,烟道止逆阀安装方法:
1、将原排烟孔扩大一小部分,能将止逆阀轻松放入即可。
2、将桥架置于烟道内侧,用螺丝将桥架收紧,将止逆阀底座固定在烟道口。
3、把阀体和底座对牢,用四周的卡口将底座扣紧。
4、安装完毕,检查挡风板是否能轻松打开,然后连接排风管。
...盖板,钢筋混凝土厚度30cm,水泥标号c30,要求承重130吨,该如何...
2025-01-16 14:49:54 2025-01-16 14:49:54 2025-01-16 14:49:54 2025-01-16 14:49:54 2025-01-16 14:49:54河北保定一家农村的孩子今年25 有一妹因家无劳动力没钱而辍学老爸去年瘫痪在床家中还有一傻
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