ʻO ka valve butterfly PVC ka valve butterfly plastic. Loaʻa i ka pāpaʻi pāpaʻi pāpaʻi ke kūpaʻa corrosion ikaika, ka laulā noi ākea, ke kūpaʻa ʻaʻahu, 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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