Mn-Zn ferrites doped with different Sm2O3. Gd2O3. Ce2O3 or Y2O3 were prepared by traditional ceramic technology using industrial pre-sintered powders. A small amount of Sm2O3. https://safeersappliancers.shop/product-category/faber-in-light-inox-a70-evo-110-0456-215-cooker-hood-a70cm/