RAL Quality Mark (Gütezeichen) with ID number
Approved products that fall within the scope of the Quality and Inspection Regulations are labelled by the member company with the GSK Quality Mark (Gütezeichen), which is supplemented by the GSK ID number. Each production site has its own ID number, which ensures that the coating can be traced back to the respective production site. The list of the ID numbers of the companies or corporations can be downloaded here.