42 Technological consultancy in the field of vacuum and compressed air technology and vacuum and pneumatic equipment technology; development of software for controlling pumps and compressors; technology supervision of the use of machines and parts of machines for industrial use in the nature of pumps, compressors, pressure-vacuum generators, rotary blowers and power operated blowers, driving motors for machines, and apparatus and instruments for controlling and monitoring of air supply, vacuum pumps, and air compressors; inspection of machinery and parts of machines for industrial use, specifically pumps, compressors, pressure-vacuum generators, blowers, driving motors, other than for land vehicles, electric and electronic measuring, signaling, checking switch and control apparatus and instruments, in or for pumps, compressors and air supply installations, heat recovery units and apparatus; maintenance and servicing of software for controlling pumps, compressors; maintenance, updating and repair of software for the control and monitoring of pumps, compressors; technology advisory services related to machines and parts of machines for the production, provision and control of vacuums and fluids, pumps, compressors, pressure-vacuum generators, valves, blowers, driving motors, other than for land vehicles, electric and electronic measuring, signaling, checking, switch and control apparatus and instruments, in or for pumps, compressors and air supply installations, heat recovery units and apparatus, data processors and computers; the aforementioned services do not relate to machinery and equipment for mining and tunneling