1. Te Hanga: He tikanga tukatuka e whakamahi ana i ngā mīhini hanga hei pēhi i ngā konganuku kia puta ai he āhua kirihou hei hanga i ngā hanga me ētahi āhuatanga miihini, ētahi āhua me ngā rahi.
2. Ko tētahi o ngā wāhanga matua e rua o te hanga. Mā te hanga, ka taea te whakakore i te wetewete o te konganuku me ngā kōhao whakarewa, ā, he pai ake ngā āhuatanga miihini o ngā hanga i ērā o ngā mea whakarewa o te rauemi kotahi. Mō ngā wāhanga nui o te mīhini he nui te kawenga me ngā āhuatanga mahi uaua, ka whakamahia ngā hanga engari ko ngā āhua māmā ake ka taea te huri, te kōtaha, te wāhanga whakarewa rānei.
3. E ai ki te tikanga hanga, ka taea te wehewehe i te hanga kia: ①Te hanga tuwhera (te hanga kore utu). Whakamahia te pānga, te pēhanga rānei hei whakapē i te konganuku i waenganui i ngā paepae o runga me raro (ngā paepae) kia whiwhi ai i ngā hanga e hiahiatia ana. Ko te nuinga o te hanga ā-ringa me te hanga ā-mīhini. ②Te hanga aratau kati. Ka pēhia te konganuku parakore, ka whakapēhia i roto i te mate hanga me tētahi āhua hei whiwhi hanga, ka taea te wehewehe ki te hanga mate, te aro-mātao, te hanga hurihuri, me te whakaputa. E ai ki te pāmahana whakapē, ka taea te wehewehe i te hanga ki te hanga wera (he teitei ake te pāmahana tukatuka i te pāmahana whakahou o te konganuku parakore), te hanga mahana (i raro iho i te pāmahana whakahou) me te hanga makariri (te pāmahana noa).
4. Ko ngā rauemi hanga he maitai waro me te maitai koranu me ngā momo hanganga rerekē, ā, whai muri ko te konumohe, te konupora, te titanium, te parahi, me ētahi atu me ō rātou koranu. Ko te āhua taketake o te rauemi ko te rakau pae, te mekameka whakarewa, te paura konganuku me te konganuku wai. Ko te ōwehenga o te horahanga whakawhiti-wāhanga o te konganuku i mua i te whakarerekētanga ki te horahanga whakawhiti-wāhanga o te mate i muri i te whakarerekētanga ka kiia ko te ōwehenga hanga. Ko te whiriwhiri tika i ngā ōwehenga hanga he nui te pānga ki te whakapai ake i te kounga hua me te whakaiti i ngā utu.

Ko Nortech tētahi o ngā kaihanga takirere ahumahi matua i Haina me te tiwhikete kounga ISO9001.

Ngā hua matua:Takirere Pūrerehua,Takirere Pōro,Takirere Keti,Takirere Tirotiro,Ao Whānui,Ngā Tātari-Y,Pūhiko Hiko,Ngā Pūwhakamātautau Hau.