Plasma txiav tshuab tuaj yeem txiav txhua yam hlau uas nyuaj rau txiav los ntawm kev txiav cov pa oxygen nrog cov roj ua haujlwm sib txawv, tshwj xeeb tshaj yog rau cov hlau tsis muaj hlau (stainless steel, carbon steel, aluminium, tooj liab, titanium, nickel) txiav cov nyhuv zoo dua; nws lub ntsiab kom zoo dua yog qhov txiav tuab ...
Nyeem ntxiv