The history of Metalgráfica Rojek reflects the trajectory of its founder, a Brazilian, from Jundiaí (SP), who started his professional life alongside his father, a descendant of Hungarians, at Companhia Paulista de Estradas de Ferro (railways).

At the age of 35, Arnaldo Rojek was invited to be a partner in the creation of a metallurgical company in Mococa, interior of São Paulo, to produce cans for a dairy company. At the same time, he was invited to become an industrial director for the Etti, a food company, in Jundiaí city, adding his activities to Metalúrgica Mococa.

To meet the needs of Etti, which worked with lids for glass jars, for tomato extract, Arnaldo decided to set up a lids metallurgy alongside the company he ran. Thus, Metalgráfica Rojek was born and the first patented inventions by Arnaldo Rojek.