Peb lub Hoobkas muaj peev xwm muab cov khoom siv carbon thiab cov khoom lag luam hauv ntau thaj chaw. Peb feem ntau tsim thiab muab cov graphite electrode nrog UHP / HP / RP qib, calcined petroleum coke (CPC), graphitization petroleum coke (GPC), Needle coke, graphite block thiab graphitepowder. Peb cov khoom tau raug xa tawm mus rau ntau dua 10 lub tebchaws thiab thaj chaw (KZ, Iran, Is Nrias teb, Russia, Belgium, Ukraine) thiab tau txais lub koob npe nrov los ntawm peb cov neeg siv khoom thoob plaws ntiaj teb.