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unprocessed synthetic resins, namely, fluoro-compounds for use in the plastics industries; chemicals, namely, refrigerants for freezers and air conditioning systems; fire extinguishing compositions; surface active agents used as wetting agents and leveling agents for film coating and wax; water proof agents and oil proof agents used for protecting textiles, papers and other substrates against water and oil; detergents for use in the manufacturing processes of rubber, plastics or other high polymers and metals; foaming agents for plastics; mold-release preparations for use in the manufacturing processes of rubber, plastics or other high polymers and metals; propellants for aerosol products; etching agents for use in the manufacture of semiconductors