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    Also known as blind flange, it is a flange without a hole in the middle, used to seal pipeline plugs. There are many types of sealing surfaces, including flat, convex, concave convex, tenon groove, and ring connection surfaces.

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    Our company's products are widely used in industries such as petroleum, chemical, power, metallurgy, shipbuilding, gas, urban construction, plumbing, military, firefighting, and environmental protection.

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