6901 Bricks, Blocks, Tiles and Other Ceramic Goods of Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite or Diatomite, or of Similar Siliceous Earths

6901 (01/1988-..) Bricks, Blocks, Tiles and Other Ceramic Goods of Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite or Diatomite, or of Similar Siliceous Earths 69010000 (01/2004-..) Bricks, Blocks, Tiles and Other Ceramic Goods of Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite or Diatomite, or of Similar Siliceous Earths 69010010 (01/1988-12/2003) Bricks, of Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite or Diatomite, or of Similar Siliceous Earths, Weighing 650 Kg/M?? 69010090 (01/1988-12/2003) Bricks, Blocks, Tiles and Other Ceramic Goods of Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite or Diatomite, or of Similar Siliceous Earths (Excl. Bricks Weighing 650 Kg/M??)