Electrical insulating materials and insulating materials in the nature of substrates, namely, insulating fabrics, insulating fleeces, foils of metal for insulating, and insulating paper impregnated and coated with hardenable synthetic resins; plastics in extruded form for use in manufacture; Insulating materials, namely, semi-finished products made of plastics and fiber fabrics being non-woven insulating fabrics and knitted insulating fabrics in the form of films, sheets and molded fabric par...