3k whiwhinga karbona
Kei te whakapākehia e te 3k te whiritoi karbona hei whakaatu i tētahi whakariterite rauropu i ngā materiana komihana matua, e whai ake nei i ngā pūnaha o 3,000 niho karbona e whakapiri ana ki tētahi arataki whakapae. Ko tēnei whiritoi āhuatanga e hanga ai tētahi materiale me te kaha nui, engari ko te mana wehi iti, ka mahi pai i waenganui i ngā whakamahi hohourangi. Kei te whakamanahia e te arataki whiritoi tēnei te tuku hara i roto i te mōhiohanga tuhinga, e tirotiro ana i te whanaketanga o te whiu me te whakapai pai o ngā whenu i waenganui i te materiale. He mea kē ki te whakapae 3k tērā te whakatūnga tika, e whai ake nei i te kaha pai i ngā takiwā kotahi me ngā takiwā whakawhitinga. Ka whai haere te materiale i te wharaherea nui ki ngā momo whakamutunga me ngā paemahi taiao, ahakoa kei waenganui i ngā huarahi katoa ka mau tonu tana whanaketanga. Ko te ingoa 3k he whakapae i te nui o ngā niho karbona i roto i tētahi tow rānei, me te whakapakoko pai i waenganui i te mana wehi, te kaha, me te tahuhu matawhāiti. Ka puta mai i tēnei whakariterite tētahi arataki whatiwhati e kitea ana, ka whakaaetia kē ia hei tino karbona, e hono ana i te kairangi me te pai ake. Kei te whai ake i tēnei te whakawaikī o te whiritoi karbona 3k i waenganui i ngā mōhiohanga rorohiko, ngā whenu motokā, ngā taonga poritanga, me ngā whakamahi whare, kei reira te whakapai pai o te whānuitanga niho me ngā āhuatanga pai e mahi ana hei whakatipuranga mō ngā take whanaketanga.