Flexible plumbing pipes of plastic; Flexible PVC pipes; Flexible tubes of plastic; Hoses of textile material; Insulating sleeves for power lines; Insulating splice cover for electrical cable; Insulating tapes; Insulation in the form of floor coverings; Masking tape; Pipe muffs, not of metal; Plastic conduit for plumbing use; Plastic, foam and corrugated PVC fluted substrates for use in the manufacture of signs