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Chemical products for use in industry; unprocessed artificial resins, unprocessed plastics; adhesives for use in industry; industrial adhesives and glues; glues for use in industry; hot melt adhesives (for industrial use); glues for the building industry; industrial glues for tubes and connectors; chemical compounds for welding, chemical products and liquid for welding included in this class. Rubber; fire protection sleeves for pipes; flexible pipes not of metal; seals and connections not of metal for pipes; flexible tubes of plastic and junctions for transporting hot and cold liquids and their parts not included in other classes; insulating mastics included in this class. Building materials of plastic (not of metal); cladding panels, doors, air inlets and ventilation caps not of metal for roofs, walls or windows, not included in other classes; shaped profiles not of metal for building rigid profiles for buildings, all these products not of metal; pipes not of metal with or without pressure, for fluids; non- metallic drain pipes; non-metallic pipes or rigid pipe elements for building, sanitation, irrigation or drainage; non metallic streetparts of gutters, Not of metal, gutters not of metal, gutter brackets, not of metal, gutters not of metal; rain-water pipes not of metal; rigid tubes and junctions, not of metal for the transport of compressed gravitaire hot and cold liquids.