Raw and secondary raw materials
Deref sells a wide range of mineral raw materials for the main European manufacturers of shaped and unshaped refractory products used in steel, ceramics and glass industries.
- HD Bauxite
- Bauxite Steel Grade
- Chamotte Silico-alumina
- Chamotte with alumina high-content
- Calcined Alumina Smelter Grade
Deref is the Italian agent of Intrasa SA, Spanish manufacturer of refractory clay and chamotte/calcined clay.