[Class : 1] Chemicals Used In Construction; Additives(chemicals); Chemical Preparations For Use As Corrosion Inhibitors; Impregnation And Bonding Agents For Concrete, Stone, Masonry, Plaster And Mortar, Being Chemical Products Included In Class 1; Concrete Admixtures; Adhesives For Industrial Purposes; Adhesive Fillers; Sealants; Joining And Bonding Agents For Concrete And Tiles; Additives For Securing Plaster.