SCIENTIFIC, NAUTICAL, ELECTRICAL AND ELECTRONIC, OPTICAL, WEIGHING, MEASURING, ANALYSIS, DISPLAY, SIGNALING AND CHECKING, SUPERVISION APPARATUS AS WELL AS INSTRUMENTS AND EQUIPMENT, NAMELY FLOW METERS, WATER, GAS, ELECTRICITY AND ENERGY METERS, VOLTMETERS, GAS, LIQUID AND PHYSICAL PROPERTY ANALYZERS, SPECTROMETERS, PHOTOMETERS, SENSORS, METAL DETECTORS FOR INDUSTRIAL PURPOSES, ACTUATORS, CONTROL VALVES FOR REGULATING THE FLOW OF GASES AND LIQUIDS, TRANSMITTERS FOR SIGNALS, ELECTROACOUSTIC TRANSDUCERS, SCANNERS, ACOUSTIC AND OPTICAL ALARMS, BURGLAR ALARMS, ELECTRONIC NOTICE BOARDS, ELECTRIC CONTROL PANELS FOR ELECTRICITY; ELECTRIC CABLES, ELECTRIC WIRES, SEMICONDUCTORS; ELECTRONIC AND ELECTRICAL APPARATUS, EQUIPMENT AND INSTRUMENTS AND PARTS THEREOF FOR POWER GENERATION, DISTRIBUTION AND SUPPLY AS WELL AS FOR GENERATING, DISTRIBUTING AND SUPPLYING ALTERNATIVE ENERGY, NAMELY ELECTRIC DUCTS AND LEADS, SIGNAL CABLES, STARTER CABLES FOR MOTORS, ELECTRIC CONTACTORS, ELECTRIC AND ELECTRONIC RELAYS, POWER SYSTEM PROTECTIVE RELAYS, ELECTRIC TRANSFORMERS, ELECTRIC CONVERTERS AND INVERTERS, ELECTRICAL CONNECTIONS, NAMELY SOCKETS AND PLUGS, RESIDUAL CURRENT DEVICES, ELECTRIC INTERRUPTERS AND VACUUM INTERRUPTERS, REACTIVE POWER COMPENSATORS, ELECTRIC CAPACITORS, ELECTRIC REACTORS, ELECTRIC DISTRIBUTION CONSOLES, ELECTRICAL DISTRIBUTION BOXES, DISTRIBUTION BOARDS AND JUNCTION BOXES FOR ELECTRICITY, VOLTAGE REGULATORS, ELECTRONIC INDICATOR BOARDS, ELECTRIC INDUCTORS, ELECTRIC POSITIVE BOOSTER, ELECTRIC ACCUMULATORS, ELECTRIC SWITCHES AND CELL SWITCHES, CIRCUIT BREAKERS, CIRCUIT CLOSERS, FUSES, ELECTRIC TERMINALS, ELECTRIC ANTI-INTERFERENCE DEVICES AND SEMICONDUCTOR ELEMENTS

PERFORMANCE OF CHEMICAL ANALYSIS; ANALYSIS FOR OIL EXTRACTION; CONSULTATION IN THE FIELD OF ENVIRONMENTAL PROTECTION; ANALYSIS FOR OIL-FIELD EXPLOITATION; CONDUCTING OIL FIELD SURVEYS; CONSULTATION IN THE FIELD OF ARCHITECTURE; ARCHITECTURAL DESIGN; RENTAL OF PORTABLE BUILDINGS; CONSULTANCY IN THE FIELD OF PUBLIC SAFETY; PROFESSIONAL CONSULTANCY IN THE FIELD OF QUALITY CONTROL; RESEARCH IN THE FIELD OF CHEMISTRY; INDUSTRIAL DESIGN; PHYSICAL RESEARCH FOR OTHERS IN THE FIELDS OF ELECTRICAL TECHNOLOGY, SUPERCONDUCTIVITY, DISTRIBUTED POWER GENERATION, CIRCUIT INTERRUPTION, INSULATION, AUTOMATION PRODUCTS, COMMUNICATION TECHNOLOGY, POWER ELECTRONICS, SENSORS, CURRENT SENSING, PRESSURE SENSING, FLOW SENSING, GAS SENSING, SPECTROSCOPY, SEMICONDUCTOR MANUFACTURING AND PACKAGING, FIBER OPTICS, AUTOMATIC CONTROL AND OPTIMIZATION, AND OIL AND GAS TECHNOLOGIES; SERVICES OF A PHYSICIST, NAMELY ANALYZING, CALCULATING, OPTIMIZING DATA, VALUES AND PROCESSES AND CONSULTATION RELATED TO AUTOMATION TECHNOLOGY, ENGINEERING, POWER ENGINEERING, MANUFACTURING ENGINEERING, OIL AND GAS TECHNOLOGIES AND COMMUNICATION TECHNOLOGIES; RENTAL AND LEASING OF PORTABLE SANITATION EQUIPMENT, NAMELY SINKS AND TOILETS; RESEARCH IN THE FIELD OF ENGINEERING AND MACHINE CONSTRUCTION; PREPARING TECHNICAL EXPERT REPORTS; ENGINEERING