[Class : 19] Glass For Building, Building Materials, Natural And Artificial Stone, Cement, Lime, Mortar, Plaster And Gravel; Pipes Of Earthenware Or Cement; Road Materials; Asphalt, Pitch And Bitumen; Portable Buildings; Stone Monuments; Chimney Pots Included In Class 19.[Class : 21] Glass For Vehicle Windows, Unworked Or Semi Worked Glass (Except Glass Used In Building), Bu...