ʻO ka coke petroleum graphite i hoʻohana ʻia i ka hana kila a me ka ʻoihana hoʻolei
Wehewehe Pōkole:
Hiʻona: Kalapona kiʻekiʻe, sulfur haʻahaʻa, naikokene haʻahaʻa, kekelē graphitization kiʻekiʻe, kalapona kiʻekiʻe 98.5% me ka hopena paʻa ma ka hoʻomaikaʻi ʻana i ka ʻike kalapona.
