Ningbo Huahui magnetic industry Co., LTD. Through ISO 9001 and TS16494; Our company is a professional manufacturer in the line of magnetic materials in China. we are specialized in the production of sintered NdFeB and all sorts of magnetic materials and elements . The annual output of NdFeB permanent magnetic matermails exceeds 3,000 tons ,we have all grades and specifications such as N30-N52, N30M-N48M, N30H- N48H, N30SH-N45SH, N28UH-N38UH and N28EH-N35EH. Our products are sold in ...