Ko te utu nui o PPR

PPR paipa, me to ratou kaha nui me te wera wera na roto i te hangarau copolymerization matapōkere, kua waiho hei whiringa pai mo te tuku wai ki te kainga. Ko tana hononga whakakotahi wera ka whakarite kia kore e pakaru, he pai te taiao…