发布时间:2025-01-29 19:59:10
确实是有两种的,这里不得不说下,国标和美标的问题了。DN100是指的公称直径,是为了管道工程设计时,方便和管件连接,所以通用的一个叫法就是DN,DN100对应的国标就是108;对应的美标就是114.最好你对一下你的管子是外径是多大的,管件就不易买错了。
实木门跟实木复合门有什么区别,门的两面是复合板的它属于实木门吗
2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10 2025-01-29 19:59:10我是渭南人看上一处房子临街朝北不知道适合居住不有懂的人指点下
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