|In our factory, we have use the two progresses of sintered NdFeB, one is normal progress to make low grade(<N45) and
another is choose HDDR to make high grade and quality sintered, like N50, N52 and 38UHT etc.
The SC and HDDR progress is an advance and new technology to make NdFeB, this progress can reach the limited of theory
of sintered Ndfeb. Please read the introduction of SC and HDDR progress to link below two websites: