37 Maintenance of industrial plant pressure relief valves and decoupling valves of metal, other than parts of machines, in particular being equipment for suppressing blasts and for structural explosion protection in industrial plants; maintenance of nozzles of metal; maintenance of containers and pipelines of metal; maintenance of machine parts for suppressing blasts and decoupling, in particular nozzles for introducing and disseminating extinguishing powders in containers and pipelines; maintenance of devices for structural explosion protection; maintenance of containers for extinguishing preparations; maintenance of pressure relief valves and decoupling valves; maintenance of measuring, regulating, control and monitoring equipment pressure relief valves, transmitters, electronic sensors and pressure gauges; maintenance of electronic signal transmitters; maintenance of blast suppression equipment for monitoring and controlling and for protection against excessive pressure and explosions; maintenance of devices for suppressing blasts, decoupling and for structural explosion protection, in particular for toxic substances, dust, gases and hybrid mixtures; maintenance of safety pressure relief valves, rupture discs, relays and pressure gauges for controlling and monitoring and for protection against excessive pressure and explosions; repair of pressure relief valves and decoupling valves of metal, other than parts of machines, in particular being equipment for suppressing blasts and for structural explosion protection; repair of nozzles of metal; repair of containers and pipelines of metal; repair of machine parts for suppressing blasts and decoupling, in particular nozzles for introducing and disseminating extinguishing powders in containers and pipelines; repair of devices for structural explosion protection; repair of containers for extinguishing preparations; repair of pressure relief valves and decoupling valves; repair of measuring, regulating, control and monitoring equipment, namely electronic monitors, relays, pressure gauges, pressure control equipment being blowout preventers for pressure relief of gas and dust explosions, and flame arresters for impeding detonation and deflagration in conduits, vessel, tanks and pipelines; repair of electronic signal transmitters; repair of blast suppression equipment for monitoring and controlling and for protection against excessive pressure and explosions; repair of devices for suppressing blasts, decoupling and for structural explosion protection, in particular for toxic substances, dust, gases and hybrid mixtures; repair of safety devices for controlling and monitoring and for protection against excessive pressure and explosions in industrial plants
Trademark: 79336935
