17 Flexible tubes of synthetic resin; rubber hoses; electrical insulating materials; insulating tubes; pressure-resistant hoses; flexible tubes, not of metal; flexible hoses for conveying liquids; flexible hoses, not of metal; flexible plastic hoses for use with ventilation systems; flexible plastic pipes for conveying natural gas; flexible plastic conduits for plumbing purposes (semi-finished products); flexible plastic pipes for plumbing purposes; insulating hoses for wire covering; synthetic resin hoses; hoses made of rubber; hoses of textile material; gaskets; junctions for pipes, not of metal; joint packings; plastic semi-worked products; raw or semi-worked rubber; electromagnetic interference shielding gaskets; electromagnetic shielding materials; electromagnetic shielding plastic sheets; insulators for cables; insulating sleeves for machinery; insulating varnish; waterproof packings; hose fittings, not of metal; plastic substances, semi-processed; fittings, not of metal, for flexible pipes; insulators for electric mains; thermoplastic heat shrinkable tubing for managing electric cables.