The elbow is connected to pipe B, so how should the wall thickness grade of pipe B be expressed?
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The pipe flange standard gives the wall thickness grade of pipe A, so how to express the wall thickness grade of pipe B?
Directly write the thickness of tube B, or S=.
Pipe B is a metric pipe, and the wall thickness is generally written directly.
Pipe B is a metric pipe. Generally, the wall thickness is written directly.