Rubber, gutta-percha, gum, namely, gum asbestos, asbestos, mica, and goods made from these materials and not included in other classes, namely, plastics in extruded form for use in manufacture; semi-processed plastic substances, namely, semi-processed plastics; semi-finished plastic materials, namely, plastic semi-worked products, namely, semi-manufactured articles of plastic materials, namely, plastics and synthetic resins in semi-processed form, namely, semi-processed acrylic resins, semi-f...