Ko te whakamahana hinu waiariki hiko he ahua o te oumu ahumahi motuhake me te kaha nui me te whakaora i te kaha, e whakamahia nuitia ana i roto i te ahumahi matū, te ahumahi petrochemical, te rapa me te kirihou, te peita me te poaka, te rongoa, te hanga miihini, te hanga kirihou ...
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