Air compressors; Gas cutting guns; Gas welding guns; Gas welding machines; Paint spray guns; Pneumatic nail guns; Vacuum cleaner bags; Vacuum cleaner hoses; Vacuum cleaners; Vacuum pumps; Back pressure valves as parts of machines; Electric sweepers; Industrial robots; Machine elements not for land vehicles, namely, pneumatic ball transfer units; Motorcycle engine parts, namely, air cleaners; Shaft bearings for vacuum pumps; Street sweepers; Water aeration systems comprising water pumps, air c...