17 Electrical insulating materials; Electrical insulating rubber products; Electrical insulators; Flexible tubes of plastic; Heat shrink nylon tubing for covering electrical wire and nylon grommets; Insulators for electrical cables; Multi-purpose thermoplastic heat shrinkable tubing; Non-metal flexible tubing; Polyurethanes in the form of blocks, sheets, film, tubing, pellets and solutions for use in the manufacture of medical devices; Resins in bars, blocks, pellets, rods, sheets and tubes for general industrial use; Rubber tubes and pipes; Semi-processed plastic in the form of films, sheets, tubes, bars, or rods