Ngā āhuatanga ā-tinana o te kōrunuma parauri: ko te wāhanga matua o te kōrunuma parauri ko te alumina. Ka wehewehea te taumata e te nui o te konumohe. Ko te iti o te nui o te konumohe, ko te iti o te pakeke. Ka hangaia te kirikiri o te hua kia rite ki ngā paerewa o te ao me ngā paerewa o te motu, ā, ka taea te tukatuka kia rite ki ngā hiahia o te kaiwhakamahi. Ko ngā āhuatanga tino pai ko te iti o te ātete ki te pānga o te karaihe, nā te mea ka pakaru te tukatuka a te mīhini huri, he porowhita te nuinga o ngā matūriki, he mata maroke, he ngāwari ki te hono.
Ko te kōrunuma parauri e mōhiotia ana ko ngā niho ahumahi: e whakamahia ana i roto i ngā rauemi ātete, ngā wira huri, me te pupuhi onepu.
1. Te whakarewa onepū parauri – he pakeke ngawari te whakarewa onepū, he matotoru teitei, kāore he silica kore utu, he nui ake te kaha, he pai te pakari, ko te momo rauemi whakarewa pai rawa atu "tiaki taiao", e whakamahia whānuitia ana i roto i te konumohe, te karāhe kōtaha parahi, te pokepokea ai te horoi tarau me ētahi atu mara;
2. Hurihanga Koreutu — ko ngā mea whakakoi karaehe huri, e whakamahia ana i roto i te ngongo pikitia, te karāhe whatu, te silicon monocrystalline, te arotahi, te karāhe karaka, te karāhe tioata, te jade me ētahi atu mara o te hurihanga koreutu, e whakamahia whānuitia ana i Haina hei rauemi huri matua;
3. ngā mea whakakoi kapia – he mea whakakoi he tae tika, he pakeke pai, he pakari, he momo wāhanga matūriki e tika ana me te tohu pupuri mata tapahi, e whakamahia ana i roto i ngā mea whakakoi kapia
4. Ngā mea whakakoi pania – ko ngā mea whakakoi ngā rauemi mata o te pepa kirikiri, te kākahu me ētahi atu kaihanga;
5. He whakakī mahi korundum parauri – e whakamahia ana mō ngā wāhanga pērai motuka, ngā potae motuhake, ngā hua hanga motuhake me ētahi atu kara ka taea te whakamahi hei hanga papa huarahi, papa rererangi, tauranga, papa waka, papa ahumahi, papa hākinakina me ētahi atu rauemi ātete-kakahu;
6. He momo tātari hou tēnei mō te whakamahi i te mea whakakoi, e whakamahi ana i te mea whakakoi kirikiri hei papa raro o te moenga tātari, hei pure i te wai inu, hei wai para rānei, he momo hou tēnei mō ngā rauemi tātari wai i te kāinga me tāwāhi, he mea tino pai mō te whakakoi i te konganuku kore-ferrous, te whakamāmā i te paru keri hinu.
Te wā tuku: Hui-tanguru-01-2023
