Mata kōpae, Kōpae harrow, Kōpae āhua-ngaru

He mea hanga ngā hua katoa ki te maitai boron kounga teitei, whai muri i te hanga me te tukatuka wera, kia tino pakari ai te hua, kia ātete hoki ki te kakahu. Ka kaweakehia ngā hua ki Rūhia, ki Lithuania, ki Pāniora me ētahi atu whenua, ā, whai muri i ngā whakamātautau mākete maha a ngā kiritaki, he tino pai te mahi.