Lub lim tiam no graphite electrode nqi txuas ntxiv mus, tam sim no electrode kev lag luam hauv cheeb tsam tus nqi sib txawv tau maj mam nthuav dav, qee cov tuam txhab tau hais tias cov nqi qis qis qis dua, tus nqi nyuaj nce siab.Tam sim no, hauv kev lag luam electrode, cov khoom siv me me ...
Nyeem ntxiv