Quality flat welding flange, GB flat welding flange, Cangzhou Hongyuan of PN2.5 316L stainless steel welded flange raised face (RF), concave (FM), convex (M), tongue and face (T), and groove face (G ), the whole plane (FF). With a neck flat welding flange diameter range: DN10 to DN600 Scope: PN series PN2.5 of PN40; Class Series class150 ~~ the Class1500 flange material: carbon steel, Luo molybdenum steel, 304,316,304 L, 316L, 321,347, CF8C. Manufacturing process: forging. Advantages: with a neck flat welding flange is welded flange, because there is a short-necked, thereby increasing the strength of the flange carrying efforts to improve the flange. So it can be used in higher pressure pipelines. Disadvantages: higher cost compared with the plate flat welding flange, due to its shape features easier to bump in transit welding flange pressure range, the use of flat welding flange GD87-0506 flat welding flange, welded flange pressure, PN1.0 PN0.6 PN0.25 The company has domestic advanced production lines, the production of high, medium and low pressure elbows, reducers pipe, tee, bend, flange and pipe factory Chemical Engineering Design and preparation professional manufacturers. At the same time, the company also produces wear, corrosion, pipe insulation, steam pipe hangers and plant parts and other products. Is widely used in petroleum, chemical, electric power, construction, metallurgy, water conservancy and other large-scale projects. Website: http://www.czhypipe.com/