1 February, 2021 LONGi has announced that it has been awarded CTF (Customer Testing Facility) witness laboratory recognition by TÜV NORD for its Taizhou module laboratory in Jiangsu Province on January 21, 2021.
LONGi Obtains CTF Witness Laboratory Qualification from TÜV NORD
![Longi944_251](https://taiyangnews.info/wp-content/uploads/2020/03/longi_944_3511.png)