Metal valve. Center position.
Metal valve. Center position.
Metal valve; 34G. Center position.
Metal valve. Center position.
Metal valve; 34G. Center position.
Metal valve; 34G. Center position.
Metal valve. Center position.
Metal valve. Center position.
Metal valve; 34G. Center position.
Metal valve; 34G. Center position.
Metal valve; TR4. Center position.
Metal valve; 34G. Center position.
Metal valve. Center position.
Metal valve. Center position.
Metal valve. Center position.