Neke atu i te kotahi rau tau e whakamahia ana te kowiri tira. He maha nga momo koranu rino kei roto, engari he rereke ki te rino tikanga he atete ki te waikura me te kore e waikura ina pa ana ki te wai anake. Ko te huānga whakakotahi e hanga ana i te maitai 'korekore' he chromium; heoi ko te taapiri o te nickel e taea ai te kowiri tira hei koranu tino pai.
Wā tuku: Hepetema-22-2020