Shaft seals; single-acting and double-acting mechanical seals with gas or liquid lubrication for sealing liquid or gaseous media; box-type mechanical seals; mechanical seals with sealing fluid supply; mechanical seals with rinse functions; mechanical seals with leak recovery mechanisms; mechanical seals with leak checking mechanisms; all the aforesaid goods being machine parts; machines for pressurization, circulation and/or tempering of fluids used in mechanical seals; mechanical apparatus and equipment, namely counter-pressure units, fluid backfeed units, fluid circulating units, separators for impurities; apparatus and equipment for leak collection; gas supply units (machine parts) for mechanical seals with gas lubrication

Packing and stopping materials, including mechanical seals of all kinds, sealing rings, lip seals, gap seals, labyrinth seals, gland sealings, seals for rotary tubular kilns