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Established in 1979, the company Bertoletti Valerio s.r.l. produces and markets high-tech rubber seals.
With the experience gained over many years of activity the company is able to meet the needs of even the most complex manufacturing businesses.

The strong propensity to customer satisfaction has rewarded our company, which over the years has acquired the role of a competent and reliable partner of the most demanding manufacturing industries, by producing high-tech rubber seals and assisting our clients with our know-how, right from the tool planning phase, with the selection of the material and the choice of the most advanced production methodes.

Bertoletti Valerio s.r.l. supplies their products, among others, to the main industrial producers in the mechanical, automotive, machinery, agriculture, viniculture, dairy, sports equipment sectors.


The production plant of Bertoletti Valerio s.r.l., located between the provinces of Brescia and Bergamo, covers an area of ​​1200 square meters, 800 of which are used for the production line that is divided into technical departments, molding, quality control, assembly and packaging.

Our production is prepared and executed by responsible and qualified staff, constantly trained and updated with the most advanced production systems.

The machinery consists of vertical presses, injection and compression molding, the press capacity reaches from 80 to 270 t.

We work with drawings and samples supplied by the customer to meet the various needs, using certified raw materials of high quality as NBR, EPDM, HNBR, FKM, FLUOR SILICONE. SILICON AND NATURAL RUBBERS.