Lub luag haujlwm ntawm cov hnab looj tes ruaj ntseg

Hauv cov khoom tiv thaiv kev ua haujlwm, cov hnab looj tes tuaj yeem ua lub luag haujlwm tiv thaiv tes, tshwj xeeb tshaj yog hauv kev tuav cov khoom, kev siv hluav taws xob vuam, kev siv tshuaj reagent xws li kua qaub thiab alkali, kev ua haujlwm nyob, thiab kev ua haujlwm oily ib puag ncig. Cov hnab looj tes tawv tawv, hnab looj tes welder, hnab looj tes acid thiab alkali resistant, hnab looj tes insulating, thiab lwm yam.