Tubular plate, which involves drilling slightly larger holes on a circular steel plate than the outer diameter of the tubes, is a round steel used in heat exchangers to fix tubes and seal media. It is an accessory that allows tubes to be inserted and welded for this purpose. The precision of the tubular plate, particularly the spacing between tube holes and tube diameter tolerances, perpendicularity, and finish, all affect the assembly and operational performance of the listed chemical equipment.