Acrylic resins [semi-finished products]; artificial resins [semi-finished products]; synthetic resins [semi-finished products]; plastic substances, semi-processed; plastic film other than for wrapping; anti dazzle films for windows [tinted films]; heat insulating films of artificial resins; heat insulating sheets of artificial resins; anti-dazzle films of artificial resins; anti-dazzle sheets of artificial resins; reflection films of artificial resins; reflection sheets of artificial resins; light scattering films of artificial resins; light scattering sheets of artificial resins; plastic semi-worked products