Electrical insulating materials; Electrical insulating tape; Electrical insulating tapes; Films and sheets made from plastic for use in the manufacture of circuit boards; Films and sheets made from polymers for use in the manufacture of circuit boards; Films and sheets made out of resin for use in the manufacture of circuit boards; Films and sheets made out of thermoplastics for use in the manufacture of circuit boards; Insulating tapes; Plastic films for electrical insulation; Polymer film u...