Classification of Combustion Performance of Common Building Interior Decoration Materials Material level Examples of materials A Granite, marble, terrazzo, cement properties Materials of various products, concrete products, gypsum parts board, lime products, clay products, glass, ceramic tile, mosaic, steel, aluminum, copper alloy, etc. Ceiling material B1 Paper gypsum board, fiberglass gypsum board, cement particleboard, mineral wool decorative sound absorption board, glass wool decorative sound absorption board, perlite decorative sound absorption board, flame retardant plywood, flame retardant medium density fiberboard, rock wool decorative board, flame retardant wood, aluminum foil composite material, flame retardant phenolic plywood, aluminum foil fiberglass composite material, etc. Wall material B1 Paper gypsum board, fibre gypsum board, cement particleboard, mineral wool board, glass wool board, perlite board, flame- retardant plywood, flame-retardant medium density fiberboard, fire-retardant plastic decorative board, flame-retardant double-sided particleboard, multi-color paint, fire-retardant wallpaper, fire- retardant wallpaper, flame-retardant granite decorative board, magnesium oxychloride cement assembled wallboard, flame-retardant fiberglass, PVC plastic wallboard, light weightHigh Strength Composite Wallboard, Fire-retardant Molded Wood Composite Board, Colored Fire-retardant Wood-based Panels, Fire- retardant FRP, etc. B2 Various kinds of natural wood, wood-based panels, bamboo, paper decorative panels, decorative veneer panels, printed wood- based panels, plastic veneer decorative panels, polyester decorative panels, plastic decorative panels, plastic fiberboard, plywood, plastic wallpaper, non-woven wallpaper, wallpaper, natural wallpaper, artificial leather, etc. Ground B1 material Hard PVC plastic floor, cement particleboard, cement wood silk board, chloroprene rubber floor, etc. B2 Semi-rigid PVC plastic flooring, PVC coil flooring, wood flooring vinyl carpet Decorative B1 fabric All kinds of flame retardant fabrics treated with flame retardant B2 Pure wool decorative cloth, pure linen decorative cloth, flame retardant treated other fabrics, etc. Other B1 Polyvinyl chloride plastics, phenolic decorative plastics, polycarbonate plastics, materials polytetrafluoroethylene plastics, melamine, urea-formaldehyde plastics, silicone plastic decorative profiles, flame retardant treated fabrics, etc.See also the related materials in ceiling and wall materials. B2 Flame retardant treated polyethylene, polypropylene, polyurethane, polystyrene, fiberglass reinforced plastics, chemical fibre fabrics, wood products, etc.