Hloov welding sweatband

Khoom siv:

Hnub ci auto darkening vuam kaus mom hlau yog dav siv hauv kev lag luam vuam. Nws yog cov khoom siv tiv thaiv tus kheej. tab sis kuj yog ib qho cuab yeej tseem ceeb rau welders. Auto darkening welding kaus mom hlau siv ntau thiab ntau lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov vuam, txhim kho vuam zoo thiab ua haujlwm zoo.