Emulsifying agents and coating preparations, all being chemical products; chemical preparations for removing scale, carbon, grease, sealing compounds, soot or the like deposits from surfaces; chemical preparations for use in the treatment of effluent; all included in Class 1; chemical additives for use as defoaming agents; acids for use in etching; pickling solutions being chemical preparations or substances for use in the removal of deposits or of coatings, from metals; chemical preparations for use in the detection of surface blemishes, flaws or cracks; chemical preparations for dewatering, and for inhibiting rust; chemical preparations for the treatment of water (not for colouring, medical,toilet or laundry purposes); chemical preparations (not in the nature of paint) for sealing and coating surfaces; chemical preparations for use in industry, manufacture and science; artificial and synthetic resins; plastics in the form of powders, liquids, pellets, chips, granules or pastes, for industrial use; chemical preparations for dispersing petroleum and oil; filtering materials of raw or partly prepared vegetable materials, of mineral substances, or of plastics materials in powder form; chemical products for preventing scale, and for removing or diminishing incrustation in water systems; liquified gases (other than fuel) for use in aerosols.;
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