OBA rau paj rwb yog rau paj rwb cov ntsiab lus ntawm textile, zoo li cov xov paj, ntaub thiab khaub ncaws, uas tuaj yeem cia cov xov paj dawb thiab greige ntau ci ntsa iab.
TSEV DYESTUFF OBA PIGMENTS AUXILIARIES Hais txog peb Xov xwm Tiv tauj peb SITEMAP