ʻO ka valve butterfly PVC ka valve butterfly plastic. ʻO ka valve butterfly plastic he ikaika ka corrosion resistance, ka laulā noiʻi ākea, ke kūpaʻa lole, ka wehe maʻalahi a me ka mālama maʻalahi. He kūpono ia no ka wai, ka ea, ka aila a me ka wai kemika corrosive. ʻO ke kino o ka valve ...
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