A. Rom Agencies supplies raw materials from different substrates such as ZnS, ZnSe, Chalcogenide Glasses, N-BK7, UV Fused Silica (UVFS), Calcium Fluoride (CaF2), Magnesium Fluoride (MgF2), Germanium (Ge), Silicon (Si),  Spinel, Sapphire, Vitronit and much more.