Rubber, gutta-perch, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal; synthetic corrosive and fire resistant resins for use as a bonding agent and/or protective coating and/or in the manufacture of structural components; polyester and vinyl ester resins for general industrial use; none of the aforementioned being rubberised repair products, casings or repair kits for use in repairing tyres and tubes