跟读学到很多。汽车间里的下水口专家咋说？abs与pvc材质类似褒贬不一。俺这HD用于下水道的是abs. 与地域有关？

来源: IEbird 于 2023-01-14 08:39:23 [旧帖] [给我悄悄话] 本文已被阅读：次

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