Whakaahuatanga Poto:

1. Te tono taputapu Ka whakamahia te raina whakangao huinga oti mo te hanga paura parahi ma te tikanga ngota wai.Ko te raina whakaputa ko te paura konukura me te koranu konupora paura ngota, te whakamaroke, te whakaheke, te whakarōpū, te whakakotahi i nga mahi toi me nga taputapu katoa.Ka taea e to taatau kamupene te whakarato i te raina whakangao paura parahi me te arataki hangarau hanga.2. Taputapu Raukaha A: 500tons ia tau B: 1000tons ia tau