we specilized in manufacturing marine air vent head for about *0
years ,and have obtained many type approval ,such as
ABS,GL,LR,BV,DNV,NK ,RINA ,and so on
FLANGE CONNECTION AIR VENT HEAD IS USED FOR ALL KINDS OF SHIPS FOR
VENTILATIN, AND WE COULD MANUFACTURE ALL KINDS OS MARINE VALVES
ACCORDING TO THE CUTOMER'S REQUIREMENTS