T TARTARINI

[ Installations and plants used to reduce and regulate gas pressure, measure flow rate of gas, and distribute gas for civil and industrial purposes, comprised of] gas pressure reducing regulators [, mechanical pressure-temperature-flow rate recorders, flow computers, flow correctors, data loggers, and remote control units for gas distribution networks, all sold together as a unit and [ sole ] * sold * separately ]

[ installations and plants used to distribute gas for civil and industrial purposes, comprised of isolating valves, slam shut valves, pressure relief valves, filters, heat exchangers, silencers for noise due to pressure regulating process, ] absorption and injection odorizing units [, all sold together as a unit, and sold separately ]