You can visit our website without entering any personal data. Where personal data (such as name, postal address or e-mail address) is collected on our website, it is done as far as possible on a voluntary basis. The data will not be passed on to third parties without your express consent. If you and we are entering into a contract relationship, or where the provisions of any such contract are to be reworded or amended, or if you submit an inquiry to us, we will collect and use personal data from you to the extent necessary for the aforesaid purposes (inventory data). We will collect, process and use personal data as necessary to enable you to utilize our online offering (usage data). All personal data will only be stored as long as is necessary for the aforesaid purpose (processing of your inquiry or execution of a contract). This will be in compliance with statutory keeping periods required by tax and commercial law. On instruction from the competent agencies, we may in individual cases disclose information regarding this data (inventory data) where necessary for the purposes of criminal prosecution, to avoid danger, to comply with the statutory duties imposed by state security or military defence authorities, or to exercise intellectual property rights.