Hais txog cov khoom
Cov khoom lag luam tau dhau los ntawm Asmeskas ANSI / BIFMA5.1, European EN1335 thiab Japanese JIS cov qauv xeem, thiab ua raws li QB / T 2280-2007 chaw ua haujlwm rooj zaum kev lag luam tus qauv.Cov khoom siv feem ntau yog siv hauv cov khw muag khoom loj loj, chaw ua haujlwm, tsev so, factories, tsev kho mob, tsev kawm ntawv ...