Cov khoom siv silicone thiab lwm yam khoom yog tib yam li ntau yam ntawv pov thawj, cov khoom siv silicone daim ntawv pov thawj raws li (ROHS, REACH, FDA, LFGB, UL, thiab lwm yam).JWT Roj Hmab yog ib qho khoom siv silicone uas tuaj yeem dhau qhov kev sim thiab ntawv pov thawj hauv qab no ...
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