… broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or … of slag, dross or similar industrial waste, whether or not incorporating the materials cited in the first part of the …
Explanatory notes
… broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or … of slag, dross or similar industrial waste, whether or not incorporating the materials cited in the first part of the … heading covers pebbles, gravel and broken or crushed stone (including mixtures of different kinds of stone), of a kind …