What's the meaning of the middle flange? What's the difference between the flange and the flange?
Generally round, there are other shapes.The middle flange is also the flange, refers to the meaning in the middle,
Fran: it's an exotic language. English Name: flange, flange is to make the two cavities connected to the protruding parts or components.
for example, the flange valve flange has three, in the channel on the side flange, in the middle to connect the valve cover for the flange in the middle flange.
