[Class : 17] Flexible Pipes, Tubes, Hoses And Fittings Therefor [Including Valves] And Fittings For Rigid Pipes, All Non Metallic, Preferably For Use With Vacuum Pumps And/Or Vacuum Apparatus; Gaskets, Sealants And Fillers, Preferably For Vacuum Pumps And/Or Vacuum Apparatus; Articles And Materials For Water And Moisture Sealing, Preferably For Vacuum Pumps And/Or Vacuum App...