He aha ngā take o te putanga kore pumau i roto i ngā raina whakaputa kirihou?

Ngā Take Matua

• Te hoahoa tīwiri hē
• Te koretake o ngā rauemi
• Te kore pumau o te pāmahana

Ngā otinga

Mā te arotau i ngā pūnaha oko tīwiri ka tino whakapai ake i te pumau.

Ako atu i Mīhini Jinteng.

Ngā Pātai Auau

Me pēhea te whakau i te putanga o te extrusion?

Whakamahia te hoahoa tīwiri kua arotauhia me te whakahaere pāmahana pumau.