ʻO ke kalapona kiʻekiʻe a me ka maikaʻi o ka Graphite Petroleum Coke no ka hoʻoheheʻe ʻana o Refractory
ʻO ka wehewehe pōkole:
Hoʻohana nui ʻia ʻo Graphite petroleum coke i nā kaʻina hana hoʻoheheʻe kūikawā e like me ka recarburizer, ʻo ia hoʻi i ka hana ʻana i nā huahana ductile kiʻekiʻe a me ka hina hina me nā mea i hoʻopaʻa ʻia i ka sulfur maʻamau, a me nā noi ʻē aʻe.