H75

[ Installation and maintenance of mechanical seals ]

Mechanical seals, namely, shaft seals; single-acting and double-acting mechanical seals incorporating gas or liquid lubrication for sealing liquid or gaseous media; box-type mechanical seals; mechanical seals incorporating sealing fluid supply; mechanical seals incorporating rinse functions; mechanical seals incorporating leak recovery mechanisms; [ mechanical seals incorporating leak checking mechanisms; ] all the aforesaid goods being machine parts; [ mechanical apparatus and equipment for the storage, pressurization, circulation and/or tempering of fluids used in mechanical seals, namely, counter-pressure units; machine parts, namely, fluid back feed units; fluid circulating units; centrifugal separators for impurities; magnetic dust, oil, and water separators for impurities; apparatus and equipment for leak collection, namely, gas supply units for mechanical seals with gas lubrication, namely, gas compressors; ] seals for machines, namely, [ lip seals, ] gap seals [, labyrinth seals, non-metal seals for rotary tubular kilns ]

[ Packing materials for forming seals; packing materials for forming seals, namely, non-metal sealing rings, lip seals, gap seals, labyrinth seals, gland sealings in the nature of packing glands for use in pumps and industrial applications, all for use as connection seals ]