Now you can create a multilingual and multicurrency Request For Quote site using WPML, Please take a look at our demo, it is working in two languages using WPML plugin.
Visit WPML > Translations management > Multilingual content set up (tab) > Custom fields:
If you have already translated your products before following this step, you will surely need to update your product translations to inherit the visibility of Add to quote, Add to cart and Price in your product translations.
Translate the Quotelist page as you would any other WordPress page. Be sure that the translated pages have the shortcode.
Make note of the translated page identifiers because you will need them to translate the Quotelist page ID using WPML string translation (Quote List Page).
WPML > String translation:
If Request For Quote – Quotation plugin doesn´t include your languages you could translate it using poedit.
You might also translate using WPML: WPML > Theme and plugins localization > Woocommerce Quotation