METAL PLATING CHEMICALS, METAL BLACKENING COMPOUNDS, AND PAINTBOOTH COMPOUNDS NOT IN THE NATURE OF PAINT

RUST AND TARNISH PREVENTATIVES

PAINT STRIPPERS, CHEMICAL POLISHING AND DEBURRING COMPOUNDS, METAL STRIPPERS, RUST AND SCALE REMOVERS, METAL CLEANERS AND SOLVENT CLEANERS

ELECTROPLATING CELL TESTERS AND RECTIFIERS