[Class : 19] Building Materials (Non Metallic) Such As Bricks, Cement, Port Land Cement, Natural And Artificial Stone, Track Ballast Stones, Building Materials, Plaster And Putty, Construction Materials (Not Of Metal), Ceilings (Not Of Metal), Raw Chalk, Clay, Coal Tar, Materials For Making And Coating Roads, Concrete And Concrete Building Elements, Cosmic Sand, Olivine Sand, Road Coating Materials, Sand Except Foundry Sandstone For Building And Aggregate Made Of Crushed Of Igneous Rock Granite Rock Sedimentary Rock And Metamorphic Rock, Aggregate For Different Purpose For Building Construction Pavement, Roads, Street And Building And Interior And Exterior Designing Of House And Aggregate And Coarse Aggregate Containing Different Size And Name Like Crushed Stone, Coarse Sand, Medium Sand, Fine Sand ,Silt ,Clay And Fine Gravel ,Medium Gravel ,Coarse Gravel, Pebbles Cobbles And Boulders.