What standard does a steel pipe with an outer diameter of 54 correspond to?
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Help, what standard steel pipe is the heat exchange tube 54*2.5?
Check the drawings to see if the pipe should be 48*2.5, and the pipe is out of alignment. Another possibility is that some manufacturers prefer to use non-standard pipes, which means that replacement parts for such pipes can only be purchased at high prices from the manufacturer. . .
Check GB 17395 Series 3.
It has been verified; it’s specifically for GB 17395 Series 3