... :wind generators,vibration motors,servo motors,DC motors,linear motors,etc. Certificat:Holder of SSMC's patents ... : neodymium, iron, boron and other metalsb. Various sizes and shapes like blocks, disks, rings, and arc segments are available. ... vibration motors, DC motors, servo motors, linear motors, MRI, magnetic separators, loudspeakers and linear actuatorse. Certificate: Holder of SSMCs patents; ...