Semi-processed plastics; Semi-finished acrylic molded plastic substances for use in manufacture and insulating materials; Rubber goods, namely, stuffing of rubber and rubber derivatives; Unprocessed and semi-processed rubber, namely, crude rubber and natural rubber; gutta-percha; gum, raw or semi-worked; asbestos; mica; plastics and resins in extruded form for use in further manufacturing and general industrial use; packing materials of rubber or plastics; stopping materials in the nature of ...