17 Semi-finished goods of gutta-percha, rubber, balata and substitutes therefor; films, sheets and rods of plastics (in extruded form for use in manufacture); packing, stopping and insulating materials, all the aforesaid goods included in this class
1 Chemicals used in industry; artificial resins and synthetic resins, plastics and plastic and artificial resin mixes (all unprocessed) in liquid or paste form, being basic products for the manufacturing of seals, cask and bottle closures and corks, all the aforesaid goods included in this class