NIDE muab cov twj tso kua mis lub cev muaj zog Carbon txhuam rau DC lub cev muaj zog, Cov Hluav Taws Xob Hluav Taws Xob Cov Hluav Taws Xob muaj cov hluav taws xob zoo, kev ua haujlwm kub thiab lubrication kev ua haujlwm, thiab muaj qee yam kev siv zog thiab kev xav ntawm kev sib hloov. Lawv yog cov khoom tseem ceeb ntawm lub cev muaj zog thiab muaj kev sib hloov zoo thiab kev ua haujlwm ntev.
Nyeem ntxivXa lus nug