17 Electrical insulating materials; electrical insulating paper products; electrical insulating tapes; insulating paper; chemical fiber, not for textile use; condenser paper; adhesive tapes, other than stationery and not for medical or household purposes; self-adhesive tapes, other than stationery and not for medical or household purposes; plastic semi-worked products; plastic film, other than for wrapping; fiber-reinforced plastic boards; extruded plastics in the form of pellets for use in manufacture; synthetic resins, semi-processed; thermoplastic resins reinforced with natural fibers [semi-finished products]; adhesive-coated plastic sheets for use in manufacture; plastic rods and bars; self-adhesive plastic sheets for use in manufacturing.