All our products are made according to the actual DIN, NEN or ISO norms.

For the theoretical calculation of our springs we reffer to DIN-Taschenbuch 29, Federn 1 en DIN-Taschenbuch 349 Federn 2.

3.1 Materiaalcertificats are available for free. Ask our sales department.

Measuring reports are delivered on request. We charge a small fee from € 15,-, depending on the quantities

COC declarations are made on request, ask for the possibilities and costs