[Class : 19] Non Metallic Building Materials; Glass Wool / Mineral Wool Decorative Acoustical Tiles And Boards, Non Metallic Claddings, Wall Linings And Wall Tiles; Non Metallic Ceilings And Ceiling Tiles; Plaster And Plaster Board; Building Boards; Building Papers; Building Laths; Partitioning; Jointing Compounds And All Other Building Materials Included In Class 19.