Patent & Certificate
YUFENG muab siab - zoo ntim cov kev daws teeb meem thiab tau txais ntau daim ntawv pov thawj tseem ceeb, suav nrog daim ntawv pov thawj patent, daim ntawv pov thawj zoo, UL ntawv pov thawj, RoHS ntawv pov thawj, SGS ntawv pov thawj, REACH ntawv pov thawj, thiab MSDS cov lus qhia. Cov ntawv pov thawj no xyuas kom meej tias peb cov khoom ua tau raws li cov qauv thoob ntiaj teb hais txog kev tsim kho tshiab, zoo, thiab kev nyab xeeb.
