Since you will have same content for about and product detail page irrespective to its translated version. So, obviously you might face seo penalty. As recently, Google algorithm has clarified a clear cut instructions for ecommerce websites that they can't use different pages for different languages or countries.
So, for your case, I would suggest you to use a multilingual language plugin. You may go through the documentation of WPML plugin. It enables you to create different language translated versions of your pages. There you may tweak your content too and it won't have any seo penalty.
Here is the link to plugin's official website https://wpml.org/
Disclaimer: I suggested this plugin because I have personally used it. This is neither an endorsement or promotion of the same.