发布时间:2025-01-29 12:57:35
试压有两种方法:
1,关闭进出户阀门,把管道打满高压气体,安装压力表。
2,关闭进出户阀门,把管道打满高压水,安装压力表。
两种方法都需要打压。并不是仅仅灌满水。
3trees 三棵树 syi230ds 环保油漆 18l详细介绍
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