All products are marked with a serial number. This makes it possible to retrace completely the production chain and quality checks.

Beispiel für ein HKS-Metalltypenschild, die auf Metallkompensatoren geheftet werden

If the customer so wishes, the products can be provided with a metal I.D. plate showing for example the serial number, nominal width, pressure level, year of manufacture, customer part number or customer order number.