Vim li cas xaiv cov khoom tseem ceeb?
Cov kua dej muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, qhov kub thiab txias, viscosity, abrasiveness, thiab cov ntsiab lus ntawm cov khoom. Cov khoom siv tsis zoo tuaj yeem ua rau:
Ua ntej corrosion
Hnav kom nrawm
Txo kev ua haujlwm sealing
Kev tu kom zoo ntxiv
Cov khoom siv ua haujlwm luv dua
Xaiv cov ntaub ntawv raws li kev ua haujlwm tiag tiag pab txhim kho cov cuab yeej kev ntseeg siab thiab kev npaj kho.

