Tirohanga Whare wheketere

Ko ta maatau kamupene te nuinga o te mahi ki te hanga me te tukatuka i nga whaainga ohorere koranu; Tuhinga ka whai mai, niobium, zirconium, hafnium, kōkawata, vanadium, pāparawhara, ruthenium, parahi, titanium, nika, chromium, tungsten, molybdenum, tokotoko, pereti, waea, ngongo, raupatu, nga waahanga ahua, koranu titanium, hua titanium, taputapu titanium, konganuku ferrous, konganuku onge, konganuku rehu, konganuku koretake; whakaputa, te tukatuka me te hokohoko i nga whaainga papatahi, nga whaainga maha-arc, ngongo ngongo, whāinga koranu.