Filtrar:
ISO
ISO 23551-9:2022
En Vigor
2022-01-17
Safety and control devices for gas burners and gas-burning appliances —
Particular requirements — Part 9: Mechanical gas thermostats
ISO
ISO
ISO
ISO 15590-2:2021
En Vigor
2021-08-04
Petroleum and natural gas industries — Factory bends, fittings and
flanges for pipeline transportation systems — Part 2: Fittings










