Obere electrode graphite dayameta, nke ejiri dayameta sitere na 75mm ruo 225mm, emebere elektrọd ndị a maka ịrụ ọrụ mgbaze nke ọma.Ma ị chọrọ mmepụta nke calcium carbide, nchacha nke carborundum, ma ọ bụ smelting nke obere ọla, na Ferrosilicon osisi refractory need.our obere dayameta graphite electrodes na-enye ezigbo ngwọta.