Hauv Suav teb, kev tshuaj xyuas cov iav tswm ciab yog muab los ntawm SGS.
Cov ntsiab lus suav nrog:

Kev Tsim Nyog Kev Xeem Xeem Part: Workmanship Review

Kev Ntsuas Kev Ua Haujlwm Kub Kub: Qhov txawv txav, Qhov kawg ntawm Kev Siv Lub Neej, Lub Thawv Kub Thaum Kub Kub, Flammability, Stability, Flammability Of Candlesticks thiab Candles, Specification for Annealed Soda-Lime Silicate Glass Candle Containers (tseem siv tau rau iav thawv nkaus xwb).

Tag nrho cov khoom xeem tuaj yeem qhia tau tias qhov ua tiav ntawm lub khob tswm ciab, cov khoom siv thiab cov khoom siv ntawm lub khob ntim tau tsim nyog, thiab tseem tuaj yeem piav qhia txog kev siv ntau yam ntawm lub khob tswm ciab thaum nws siv.
Txawm hais tias nws yog lub khw muag khoom lossis tus neeg xa khoom, cov ntawv qhia kev qhia tuaj yeem ua raws li daim ntawv xeem.

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