Mōhiohio Hanga He mea hanga te GPC i te kōka hinu kua whakapūkaratia hei rauemi mata, kātahi ka whakakāwhatatia katoatia i raro i te tukanga whakakāwhata tonu i raro i te pāmahana teitei o te 2800℃. Muri iho, mā te kuru, te tātari me te whakarōpūtanga, ka tukuna e mātou ki ō mātou kaiwhakamahi ngā rahi matūriki rerekē i waenga i te 0-50mm i runga i te tono a ngā kiritaki.
