![Kvarcni pesak za keramičarsku indistriju](https://jugokaolin.rs/wp-content/uploads/2018/04/keramicarska-industrija.jpg)
Clays from the branch of Kopovi Ub has been used for many years in many branches of the ceramic industry. Clays D – 2 and PKG 2s are used in the production of ceramic tiles and sanitary ceramics, while the type PKG 2v is used in the production of refractory ceramics.