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IT8403649A1984-12-071984-12-07Valvola di sicurezza a comando elettromagnetico per riduttori di pressione di gas di petrolio liquefatti o metano
IT1227786B
(it)
High-pressure fluid control solenoid valve assembly withhigh-pressure fluid control solenoid valve assembly with coaxially arranged two valves coaxially arranged two valves
Process and device for checking the presence and condition of the valve seal of a container for a pressurized gas, particularly a liquefied petroleum gas