Rubber, gutta-percha, gum, asbestos, mica, and substitutes for all these materials, unprocessed or semiprocessed; extruded plastics and resins for use in industry; materials for caulking, sealing, and insulating; flexible, non-metallic pipes, tubes, and hoses; semi-finished artificial and synthetic resins; elastomeric polymers; polymer films (except for packaging); synthetic rubber; raw or semi-worked rubber; semi-finished plastic materials; plastic packaging, namely bags, bags of reduced size; films and sheets, rubber stoppers; insulating products and materials; insulating oils and fats; sealants