2517 Pebbles, Gravel, Broken or Crushed Stone, for Concrete Aggregates, for Road Metalling or for Railway Ballast, Shingle and Flint, Whether or not Heat-treated, Macadam of Slag, Dross or Similar Industrial Waste, Whether or not Incorporating the Materials CIted in the First Part of the Heading, Tarred Macadam, Granules, Chippings and Powder, of Stones of Heading 2515 and 2516, Whether or not Heat-treated

2517 (01/1988-..) Pebbles, Gravel, Broken or Crushed Stone, for Concrete Aggregates, for Road Metalling or for Railway Ballast, Shingle and Flint, Whether or not Heat-treated, Macadam of Slag, Dross or Similar Industrial Waste, Whether or not Incorporating the Materials CIted in the First Part of the Heading, Tarred Macadam, Granules, Chippings and Powder, of Stones of Heading 2515 and 2516, Whether or not Heat-treated 25171010 (01/1988-..) Pebbles and Gravel for Concrete Aggregates, for Road Metalling or for Railway or Other Ballast, Shingle and Flint, Whether or not Heat-treated 25171020 (01/1995-..) Broken or Crushed Dolomite and Limestone Flux, for Concrete Aggregates, for Road Metalling or for Railway or Other Ballast 25171080 (01/1995-..) Broken or Crushed Stone, for Concrete Aggregates, for Road Metalling or for Railway or Other Ballast, Whether or not Heat-treated (Excl. Pebbles, Gravel, Flint and Shingle, Broken or Crushed Dolomite and Limestone Flux) 25171090 (01/1988-12/1994) Broken or Crushed Stone, for Concrete Aggregates, for Road Metalling or for Railway Ballast, Shingle and Flint, Whether or not Heat-treated 25172000 (01/1988-..) Macadam of Slag, Dross or Similar Industrial Waste, Whether or not Incorporating Pebbles, Gravel, Shingle and Flint for Concrete Aggregates, for Road Metalling or for Railway or Other Ballast 25173000 (01/1988-..) Tarred Macadam 25174100 (01/1988-..) Marble Granules, Chippings and Powder, Whether or not Heat-treated 25174900 (01/1988-..) Granules, Chippings and Powder, Whether or not Heat-treated, of Travertine, Ecaussine, Alabaster, Basalt, Granite, Sandstone, Porphyry, Syenite, Lava, Gneiss, Trachyte and Other Rocks of Heading 2515 and 2516 (Excl. Marble)