Chemical products for use in industry and science; catalysts; artificial and synthetic resins; plastics in the form of powders, liquids or pastes for industrial use; toners and developers, all being chemical products for use with electro-photocopiers; chemical products for absorbing gases and/or liquids; ceramics in the form of powders, beads, granules, suspension, filaments or pastes for use in manufacture or in science; but not including chemicals for use with optical, photographic or cinematographic apparatus or instruments.;
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