Description:

PEBBLES, GRAVEL, BROKEN OR CRUSHEDSTONE, OF A KIND COMMONLY USED FORCONCRETE AGGREGATES, FOR ROADMETALLING OR FOR RAILWAY OR OTHERBALLAST, SHINGLE AND FLINT, WHETHEROR NOT HEAT-TREATED; MACADAM OFSLAG, DROSS OR SIMILAR INDUSTRIALWASTE, WHETHER OR NOTINCORPORATING THE MATERIALS CITED IN THE FIRST PART OF THE HE ADING; TARRED MACADAM; GRANULES,CHIPPINGS AND POWDER, OF STONES OFHEADING 2515 OR 2516, WHETHER OR NOT HEAT-TREATED.

HS codes falls under this category.