1. 6. 2020 POLNA corp. – innovation stemming from tradition
![POLNA corp. – innovation stemming from tradition](https://www.polnacorp.ru/wp-content/themes/drs/images/img-default.png)
Following our expanding product portfolio and development activities, we decided to build new company building, which also include a development and testing center.
Following our expanding product portfolio and development activities, we decided to build new company building, which also include a development and testing center.
We have developed new types of steam coolers allowing perfect mixing of the cooling medium with cooled steam...