Qhov no yog 300mm txoj kab uas hla, lub zog zoo tib yam graphite electrode.Tuam Tshoj tus zoo graphite electrode.Rau LF Furnaces, lawv siv koob coke ntau dua li lawv cov khoom sib tw.Peb muaj cov khoom lag luam loj thiab xa khoom sai.