[Class : 19] Building Materials, (Non Metallic), Non Metallic Rigid Pipes For Building; Asphalt, Pitch And Bitumen; Non Metallic Transportable Buildings; Monuments, Not Of Metal; Cements For Building; Portland Cement; Refractory Cement; Cement Mixes; Cementitious Material For Building Purposes; Cement Plugs For Use In Filling; Slag [Building Material]; Concrete Building Materials; Slag Lime Cement; Concrete Mix; Dry Mortar; Ready To Use Cement For Building Purposes; Building Sand And Stone; Gypsum [Building Material]; Reinforcing Materials, Not Of Metal, For Building; Non Metallic Foundation Material For Use In Building; Refractory Construction Materials, Not Of Metal; Plaster; Grout; Grouting Compounds And Preparations.