[Zhongke Sanhuan: reducing the use of heavy rare earths through the use of grain boundary diffusion technology]-- during an institutional survey, Zhongke Sanhuan said that the company has continuously carried out technological innovation throughout the production process. for example, the use of heavy rare earths has been reduced by using grain boundary diffusion technology. In addition, the company has a production capacity of 25000 tons of sintered NdFeB and 1500 tons of bonded NdFeB. The company's overseas customers are mainly distributed in automotive (including new energy vehicles), consumer electronics, computers, industrial robots, energy-saving household appliances, wind power generation and other fields. At present, the company mainly carries on the recovery of magnetic materials by means of replacement with external raw material manufacturers, which can meet the requirements of customers in material recycling and other aspects.