Silicone based electrical insulating materials; electrical insulating materials; reflective silicone sheets for the manufacture of electronic devices including LED; silicone boards for the manufacture of circuit boards for electronic devices including LED; semi-worked silicone products, namely, wavelength conversion films, silicone die attach films, silicone lenses, namely, semi-finished molded plastic substance, reflectors made up of laminated plastic sheets for use in the assembly of circui...