2517.10.00 | - Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated | |
2517.20.00 | - Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10 | |
2517.30.00 | - Tarred macadam | |
2517.41.00 | -- Of marble | |
2517.49.00 | -- Other |