1. Ka whakamahia he whakamahana rua me te pereti wera hei hanga, me te hiri momo roera, ka tere ake te tere o te mīhini
2. Ka whakamahia te kaiwhakahaere PLC waitohu matua me te mata pa e whakaaturia ana i te reo Hainamana me te reo Ingarihi, te whakawhiti auau hei whakahaere tere, ka taea te whakarite i te roa o te kukume pupuhi i roto i te awhe.
3. Me te whakahaere pāmahana wera me te whakamātautau, te tiaki utaina nui o te mīhini matua, te whakamātautau tūranga rauemi tākai PVC me te PTP, te whakamātautau tūranga rauemi whāngai, te patuiro aunoa me te whakaoho rahunga, te tiaki aunoa me te mutu o te oma.
4. Ka whakamahi i te taputapu rēhita whakaahua-hiko aunoa mō ngā tauira me ngā kupu o te pepa Al e peia ana e te motuka taahiraa, kia tika ai te rēhitatanga me te mahi tino pai.
5. Te tuku i te hua kua oti i roto i te raupapa tika, te kohikohi aunoa i ngā hua kino, te whakahoki aunoa i te rauemi whitiki kia māmā ai te kohikohi.
6. Mā te kati me te whakatuwheratanga aunoa o te pereti hanga ka whakaroa i te wā e rere ana i muri i te tukunga iho o te pereti wera, ā, ka pai ake te whakamahinga o ngā rauemi tākai.
7. He pai te whāngai, he pono, he pai hoki mō ngā momo whāngai maha, me ngā whāngai koretake (e ai ki te hoahoa hua tūturu o te whāngai)
8. Ka whakaoho aunoa me te mutu o te mīhini ina kitea he pakaru, he pakaru rānei te PVC, ka nui te whai huatanga ki te kaiwhakahaere mō te whakakapinga PVC, te hononga PVC rānei i te wā tika.
9. Ko ngā wāhanga katoa e pā ana ki ngā rauemi tae atu ki te hopper he mea hanga ki te kowiri tira taumata teitei, e tutuki ana i ngā whakaritenga "GMP".