He kupu whakataki mo te huanga (ⅱ)

5. Sulfur (s) : Ko te whanariki he mea kino ano kei raro i nga ahuatanga noa, ka whakahekehia tona ngoikore me te uaua, ka hurihuri i te wa e wareware ana. Ko te whanariki ano hoki te kino ki te whakawhiwhi i te mahi me te whakaiti i te aukati. No reira ko te ihirangi sulfur e hiahiatia ana kia iti ake i te 0.055%, me te maitai-kounga e hiahiatia ana i te 0.040%. Ko te taapiri i te 0.08-0.20% te whanariki ki te maitai ka pai ake te miihini, e mohiotia ana ko te kowiri tira.

6. chromium (cr) : I roto i te kowiri tira me te kowiri tira, ka taea e te chromium te whakapai ake i te kaha, te pakeke me te whakakakahu i te mate me te uaua i te wa ano. Ka taea hoki e te chromium te whakapai ake i te parekura me te aukati i te rino, he mea nui mo te kowiri tira me te kowiri tira.

7. Nickel (ni) : Ka taea e Nickel te whakapai ake i te kaha o te maitai i te wa e pupuri ana i te kirihou pai me te uaua. He nui te parekura o Nickel ki te waikawa me te alkalis, a he waikura, he wera te ātete ki te pāmahana tiketike. Heoi, i te mea ko Nickel he rauemi uaua, me whakamahi etahi atu waahanga taapiri hei utu mo te rino nukium nickel i te mea ka taea.