ppr水管件25×3/4和25×1/2有什么区别？ - 知乎
17 June 2025 admin
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ppr水管为什么没有红蓝线了，我们知道ppr管有冷热之分，以往都是用红蓝线来区分，红线是热水管，蓝线是冷水管，热水管和冷水管的区别在于热水管的壁厚更厚，在家装中，人们为了追求更长的使用寿命，普遍采用热水管来代替冷水管使用，所以在家装市场基本上不会用冷水管，如今到建材市场上 ...
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