(1) he māmā ake te hanganga o te takirere porowhita i te takirere kuaha, ā, he watea ake te hanga me te tiaki.
(2) he uaua te mata hiri ki te kakahu me te rakuraku, he pai te hiri, he tuwhera me te kati i waenga i te kōpae takirere me te mata hiri o te tinana takirere, ā, kāore e paheke te rahi, kia kore ai e kino te kakahu me te rakuraku, he pai te mahi hiri, he roa te ora ratonga.
(3) i te wā e whakatuwheratia ana, e kati ana hoki, he iti te whiu o te kōpae, nō reira he iti ake te teitei o te takirere ao i te takirere kuaha, engari he roa ake te roa o te hanganga i te takirere kuaha.
(4) he nui te taipana whakatuwheratanga me te katinga, he uaua te whiri whakatuwheratanga me te katinga, ko te wā whakatuwheratanga me te katinga te mea matua.
(5) he nui te ātete wai, nā te mea he uaua te hongere reo i roto i te tinana takirere, he nui te ātete wai, ā, he nui te whakamahinga hiko.
(6) ina iti iho i te 16Mpa te pēhanga ingoa Pn i te ahunga o te rere reo, ka rere iho i te nuinga o te wā, ā, ka rere te reo mai i te ahunga o raro o te kōpae takirere; ina neke atu i te 20Mpa te pēhanga ingoa Pn, ka whakamahia te au whakamuri, ka rere te reo mai i te ahunga o te kōpae. Hei whakanui ake i te kaha hiri. Ina whakamahia, ka taea anake te rere o te reo takirere tapahi i te kotahi ahunga, ā, kāore e taea te whakarerekē i te ahunga o te rere.
(7) ina tuwhera katoa, ka memeha haere te kōpae.
Kei te poutū te tuaka o te kakau takirere o te takirere porowhita ki te mata hiri o te nohoanga takirere. He poto te whiu whakatuwhera/kati o te kakau, ā, he tino pono te mahi tapahi, he mea e pai ai tēnei takirere mō te tapahi waenga, te whakamahi rānei i te whakahaere me te whakawhāiti.

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.