CHEMICAL PRODUCTS FOR GALVANIC USES-NAMELY, SALTS FOR COLORING METALS, DEGREASING SALTS FOR GALVANIC BATHS, CHEMICAL AGENTS FOR PRODUCING METALLIC COATINGS FOR SYNTHETIC-RESIN PARTS, SYNTHETIC-RESIN PLATES, SYNTHETIC-RESIN CONTAINERS, AND SYNTHETIC-RESIN TUBES BY ELECTROLYTICAL OR CHEMICAL SURFACE TREATMENT, COATING, SPRAYING, PAINTING, OR DIPPING ING, OR DIPPING