HS Code Heading 6909

6909.11.20 Porcelain or china ceramic machinery parts 6909.11.40 Porcelain or china ceramic wares for laboratory, chemical or other technical uses (other than machinery parts), nesoi 6909.12.00 Ceramic wares (o/than of porcelain or china) for laboratory, chemical or technical uses, w/hardness equivalent to 9 or more on Mohs scale 6909.19.10 Ceramic ferrite core memories 6909.19.50 Ceramic wares for laboratory, chemical or other technical uses (o/than of porcelain or china), nesoi 6909.90.00 Ceramic troughs, tubes & siml. receptacles for agriculture; ceramic pots, jars, & siml. arts. for conveyance or packing of goods