Ko a maatau hua matua ko te pigment photochromic, ko te thermochromic pigment, ko te UV fluorescent pigment, ko te peara peara, ko te tiikiri i te karakara pouri, ko te whakaranu aukati aukati i te pokai, he mea rongonui ki te uhi, ki te mangumangu, ki te kirihou, ki nga peita, me te umanga whakapaipai. Ka tohaina, ka whakapaihia hoki enei tae me te pi ...
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