Cov roj av graphitized feem ntau yog siv rau metallurgy & foundry, nws tuaj yeem txhim kho cov pa roj carbon hauv cov hlau-yaj thiab casting, Tsis tas li ntawd nws tuaj yeem ua rau kom muaj cov hlau seem thiab txo cov hlau npua, lossis tsis siv cov hlau seem kiag li. Nws kuj tseem siv tau rau lub pedal nres thiab cov khoom siv sib txhuam.
