1. Tohu wira
Ko ngā wira hanga he mea tā ki te kupu "HANGA", engari kāore e kore ka tāia ētahi wira hanga ki ngā kupu ōrite hei hanga i te rūpahu. Me whakakanapa ō kanohi.
2. Momo kāhua
Ko ngā wira whakapūmau e rua ngā wahi me ngā wira whakapūmau e toru ngā wahi ka honoa mā te whakamahi i ngā rivet, i te whakarewa rānei (te whakarewa argon). I te nuinga o te wā, he rerekē te tae o te awhi me ngā tīti, ā, ka kitea ngāwaritia.
Ka hangaia ngā wira whakarewa i te wā kotahi, ā, kāore he rerekētanga tae. (Kāore pea tēnei tikanga e tika mō te katoa, nā te mea he momo wira kotahi-wahi anō hoki)
3. Ngā taipitopito kei muri o te wira
He kanapa, he maeneene te mua me te tuara o te wira i hangaia, he kanapa pai te āhua, engari he kanapa rawa te mua o te wira i whakarewahia, engari he pōuri te tuara, he kitea ngā tohu tangohanga, ngā kohao rānei (Heoi, kāore e taea te whakakore kei te whakakanapahia te mata e ngā kaihanga rūpahu). Ka kitea ngā kōhao onepu, ngā kōhao iti rānei mai i te tuara o ētahi wira i whakarewahia i te mahi kino (engari kāore e kitea i muri i te peita, i te tukatuka rānei i te tuara). Ko ngā wira i hangaia he papatahi te tuara, ko ngā wira i whakarewahia he tāmati mate.
4. Ngā mōhiohio whakairo
Mō ētahi atu kōrero e pā ana ki te pūtake wira (PCD, kōhao waenga, ET, me ētahi atu), ko ngā wira hanga ka whakanohoia ki roto i te pakitara o roto o te awhi (te mea tino noa) i te mata whakairi rānei, ā, ko ngā wira whakarewa ka whakanohoia ki muri o te tīro (te mea tino noa), ki muri rānei o te awhi, o te mata whakairi rānei.
5. Taumaha o te wira
He mea hanga ngā wira hanga mā te hanga kaha-teitei, ā, he mama ake te taumaha o ngā wira hanga i te wira whakarewa he rite te rahi me te momo.
6. Te haruru patupatu
Ko te tikanga patupatu he patu i ngā wira ki tētahi tokotoko whakarewa iti, he koi, he rangitahi te haruru mai i te wira i hangaia, ā, he puhoi te haruru mai i te wira whakarewa.
Wā tuku: 20-10-21