He aha ka noi a me ka pūʻolo o Zinc Oxide?

Hoʻopili ʻia ka zinc oxide 25kg / 50kg i ulana ʻeke a i ʻole e like me ke noi a nā mea kūʻai aku.
Hoʻohana ʻia ia no ka ʻōpala, pena, enamel, aniani a me nā ʻoihana kemika ʻē aʻe.