high quality powerful ring neodymium magnet

manufacture process: mixing---melting---powder production---sintering---testing---cutting and grinding---inspection---packing---delivery---after-sale service grade: N35~N52, N35M~N50M, N30H~N48H, N30SH~N45SH, N30UH~N40UH, N30EH~N38EH, N30AH~N33AH. product application: wind power, energy-efficient appliances, EPS systems, new energy automotive, electroacoustic device, magnetic seperator, electric tool, MRI etc; besides that VCM, CD-ROM drive, micro motor, etc. Why choose us: 1