Defoamer rau cov thawv passivator hauv cov kua qaub muaj zog

Peb muaj npe zoo yog ib qho ntawm tus thawj coj defoamer rau cov khoom lag luam acidator thiab tau txais cov qauv siv dag zog rau cov khoom siv muaj zog rau cov khoom siv.}