... TypesSlip-On, Welding Neck flange, Blind flange, Socket Welding flange, Threaded flange, Lap Joint flange and Plate flange, Orifice flange, Ring joint flange, Screwed Boss Flange, etc. Applicable standard ... 150, 300, 600, 900, 1500 and 2500PN 6, PN 10, PN16, PN25, PN40 and PN64Applications rangeoil industry,chemical industry, water conservancy ...