Kei te huri tonu te papa porohita PCB me te ahunga whakamua o te hangarau o te hangarau, engari i roto i te maapono, me tuhi te poari ara iahiko PCB katoa i te papa taiawhio, katahi ka tapahia te papa taiawhio, te tukatuka i te raima whakakakahu parahi, te whakawhiti i te papa taiawhio, Corrosion, te keri, te maimoatanga o mua, te...
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