7 Machines and power operated machine tools for stockpiling and handling gases and liquids; machine transmission parts, namely, couplings, bellows, fans, discharge spigots, dispense and tap valves, taps for containers and taps for pipelines; dispensing machines for gas stations; machines for collection, recovery and separation of gases and liquids; pumps for gases and liquids; suction strainer machines for the handling of gases and liquids; compressors for machines