He tino pai mō te whakatakoto i te pereti pūrerehua o te takirere nui-rahi ki te ahunga diameter o te paipa. I roto i te hongere porotaka o te tinana takirere pūrerehua, ka huri te kōpae i te tuaka hurihuri, ko te koki hurihuri i waenga i te 0° ~ 90°, ka huri ki te 90°, ka tuwhera katoa te takirere. He māmā te hanganga, he iti te utu, he whānui te awhe ka taea te whakarerekē.
Ko te hiri o te takirere pūrerehua he rapa hei takawaenga, he rerekē rawa i te haurua o te takirere pōro, te takirere pōro, te takirere kuaha, he mea hiri mārō. I muri i te whakamahinga roa o te takirere pōro, ka puta he tohu o te kakahu i te nohoanga, ka whakamahia tonutia. Mā te whakatikatika i te kakau me te tākai i te wā e whakatuwhera ana, e kati ana i te takirere, ka huri noa te kakau takirere ki te 90°, ka kitea he tohu turuturu, he iti noa te pēhanga o te repe tākai, ka taea te whakatutuki i te tākai me te kore turuturu, ko tetahi atu he iti tonu te turuturu o te kaha o te takirere, he nui ngā turuturu i roto i te takirere.
He rite te takirere pūrerehua ki te takirere pūrerehua whakarewa rerekē e toru, he hiri mārō, he tinana takirere me te nohoanga mō ngā wāhanga hono, he mata hiri nohoanga, he pāmahana whakarewa, he rauemi koranu ātete ki te waikura. He mowhiti hiri paparanga maha-paparanga kua mau ki te pereti takirere, he ātete pāmahana teitei tēnei takirere pūrerehua ki te takirere pūrerehua tuku iho, he māmā te mahi, kāore he whakatuwheratanga me te katinga waku, ā, ka kati mā te taipana o te tikanga tuku hei utu mō te hiri, hei whakapai ake i te mahi hiri o te takirere pūrerehua, hei whakaroa i te roa o te ora ratonga.

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.