NF C93-372-1*NF EN IEC 60401-1:2020 Terms and nomenclature for cores made of magnetically soft ferrites - Part 1 : terms used for physical irregularities and reference of dimensions
2020NF C93-372-1*NF EN IEC 60401-1:2020 Terms and nomenclature for cores made of magnetically soft ferrites - Part 1 : terms used for physical irregularities and reference of dimensions