He pai ngā painga o te waea koranu nikara-konukōmiuma, nikara, ferrochrome, ātete ki te waikura i te pāmahana teitei, he kaha teitei, kāore e whakangawari, ā, he maha ngā painga. He iti noa te roa o te whakamahinga o te momo kotahi, ā, he iti noa te whakaroa pumau, nō reira koinei te kōwhiringa pai rawa atu hei hanga i ngā wāhanga hiko kounga teitei.
Ahu: Ka taea te whakatutuki i te matotoru me ngā rahinga ki ngā hiahia o ngā kiritaki. Ngā Mahi/Ngā Taupānga 1. te hanga pākahiko nikara-kāmium 2. pākahiko nikara-hauwai 3. pūtau lithium 4. pākahiko kua huihui 5. ngā ahumahi o ngā taputapu hiko me ngā rama motuhake 6. Ngā Whakamahinga o te Pūkaha Arahi