1, Tirohanga Whai Hua-Utu

tārua ngaiaku Ka mau tonu te kakano o te papanga ki te nairona, ā, ka tino whakaitihia ngā utu rauemi. Ko te utu he 15%-30% te iti iho i te nairona parakore, ā, he tino whai hua te utu mō ngā waitohu hoko nui, he mea tino pai mō ngā kakahu tere me ngā kākahu hokohoko nui.

2,Tirohanga Mahi

Ka taea e te hangarau nairona tārua hou te whakatutuki i te ātete kakahu me te kaha e tata ana ki te nairona tūturu, me te pai ake o te pumau tae me te ātete UV. Ko tōna tere mimiti makuku o te 3.5%-4.2% te pai ake i ngā muka hangai tuku iho, ka pai ake te whakamarie mau.

3,Tirohanga Taupānga Hoahoa

He nui ake ngā whiringa maimoatanga mata o te papanga nairona tārua, tae atu ki ngā pānga matte, pearly, me te hiraka. Mā te pai ake o te urutau ki te tae, ka taea e ia te whakatutuki i ngā pānga tae whakarara me ngā pānga tae motuhake e uaua ana ki te whakamahi i te nairona parakore, ka nui ake te ngāwari o te auaha a ngā kaihoahoa.