Yes you can.
To send an inquiry please follow this link:
Inquiry formAfter filling out the form click on "Nachricht abschicken" to submit your inquiry. The following fields will have to be filled:
"Ihre Email-Adresse" -> Your email address
"Ihr Name" -> Your surname
"Herr" -> Mr.
"Frau" -> Ms.
"Ihr Vorname" -> Your name
"Betreff" -> Subject
"Ihre Nachricht" -> Your inquiry