-America, Canada- cTUVus&ETL
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America, Canada- cTUVus&ETL
▍ CTUVus & ETL CERTIFICATION yog dab tsi?OSHA (Occupational Safety and Health Administration), koom nrog US DOL (Department of Labor), xav kom txhua yam khoom siv hauv chaw ua haujlwm yuav tsum tau kuaj thiab ntawv pov thawj los ntawm NRTL ua ntej muag hauv khw.Cov qauv xeem siv tau suav nrog American National Standards Institute (ANSI) cov qauv;American Society for Testing Material (ASTM) cov qauv, Underwriter Laboratory (UL) cov qauv, thiab lub koom haum kev sib nrig sib lees paub s ...