This standard specifies the technical requirements for the manufacture of welded fin tubes (screens) made of plain tubes and flat steel. This standard is applicable to the manufacturing and inspection of fin tubes (screens) made of plain tubes and flat steel welded longitudinally. The subsequent bending and assembly of fin tubes (screens) with headers and other reprocessing must be manufactured and inspected in accordance with the relevant regulations of the corresponding standards.
JB/T 5255-1991 history
1991JB/T 5255-1991 Specification for welded finned tube (screen)