A na-ejikarị petroleum coke na agịga coke mee ihe graphite electrode, a na-ejikwa bitumen coal dị ka ihe nkedo.Ọ na-mere site calcination, compounding, igwakorita, akpụ, mmiri, graphitization na machining.Small dayameta graphite electrode, na dayameta nso si 75mm ka 225mm, na obere dayameta graphite electrodes na-ọtụtụ ebe na-eji dị iche iche ụlọ ọrụ mmepụta dị ka calcium carbide, na nhazigharị nke carborundum, ma ọ bụ mgbaze nke ọla ndị na-adịghị ahụkebe, na Ferrosilicon osisi refractory.