He aha ke ʻano o ka Sodium Sulfite?

ʻO ka maʻamau, ʻo ka zinc oxide pololei he zinc oxide kaumaha, a he māmā ka zinc oxide. Ma ka laulā, hoʻohana ʻia ke ala pololei o ka zinc oxide i nā ceramics, aniani, enamel, a me indirect zinc oxide i hoʻohana ʻia i ka lāʻau, phosphating, ʻoihana māmā, EVA, foaming, etc.