When you localize your variant templates, you'll need to use translated text strings for object titles and for reference text (for cross reference Hypertext Links, as shown in the screenshot).
You can either translate these text strings in-house, or you can send them to your service provider and have them translate the strings. For the second option, you can make a list of the text strings used by each object template that you need variants of and send this topic to your service provider. When you receive the translated text strings back, you'll open the variant template and copy the translated text strings into the output tabs.