مختصر وضاحت:

نالو: Double Orifice Automatic Air Valves, Flanged End 1. Standard: Conforms to BS EN1074-4:2000, JKR20200-0043-99 2. Flange drilled to EN1092-2 3. مواد: Ductile Iron Pressure 4/N16P. 5. سائيز: DN40-DN250