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Tankin adana ruwa na FRP ultrapure
Ana amfani da tankokin ruwa na FRP na nitrogen da aka rufe a cikin tsabtataccen ruwa. Gabaɗaya, lokacin da ake buƙatar shigar da tankokin ruwa bayan gado mai gauraya ko kayan aikin ƙarfe-ƙarfe na EDI, galibin tankokin ruwa da aka rufe da nitrogen ana fifita su azaman tankokin ajiya a wannan lokacin.