Language Use for Category and Product Name

I am going to start a site with hikashop business. I have to use the category name and product name using two language such as German and English. How can I use those language? Please, send me a link which describe step by step instruction.

You need to:
1. Make sure that your joomla handles both languages and that you can switch from one to another.
2. Download and install Falang : www.faboba.com/en/composants/falang
3. Install HikaShop. If you had installed it before, please install it again.
4. Activate the option "Activate the edition of content in multiple languages" of the configuration.
5. Edit your products and categories and you will be able to translate them.