Caulking materials; Duct tapes; Electrical insulators; Flexible hoses, not of metal; Insulating siding; Insulators for cables; Non-metal pipe muffs; Non-metal sealing rings for use as connection seals; Pipe gaskets; Pipe muffs, not of metal; Rubber bands for commercial and industrial uses; Rubber stoppers for bottles; Sleeves of rubber for protecting parts of machines; Synthetic rubber; Washers of rubber or vulcanized fiber; Watering hose; Watertight rings for plumbing pipes