GBN was established in December 1991 and began operations in 1992 in rented premises with a floor area of about 700 square metres at Paruzzaro (NO).
In 1996, it moved to its current property in Varallo Pombia, with an initial surface area of approximately 1,600 square metres with four production lines.
In 1998 it undertook a first extension of about another 500 square metres and the production lines grew to six. In late 1999, another double extension to the existing 3,200 square metres of production area, to which 250 square metres must be added for offices.
The production lines grew to eleven, used for the machining of metal sections
with special characteristics, both in form and in dimensions. Production processes are certified by a management system consistent with the principles of the UNI EN ISO 9001 standard.
The shareholders of the company operate with direct technical, commercial and administrative responsibility..