Naldoni e Biondi NBBORSG2 is a weld-on cylinder port in the NBBORSG catalogue family. This steel S355J2C port provides the threaded oil connection used during hydraulic-cylinder fabrication. The exact manufacturer row lists thread F = 2”, outside diameter B = 75 mm and height C = 32 mm. No pressure rating or complete-cylinder performance is inferred from the component dimensions.
The exact article number is printed in the manufacturer catalogue and appears in the independent supplier's selected manufacturer-article-number field. The supplier displays no manufacturer brand (--), so this evidence confirms an observed catalogue designation rather than independent authentication of a supplied Naldoni unit.
The local reference contains the complete relevant original manufacturer page with its exact row and drawing. The supplier photograph is genuine and representative; photographs are shared between sizes and do not prove dimensions, material finish or unit authenticity.
