Ferrite magnetic tile 1. Material: oxide with barium or strontium carbonate. 2. Shape: ring, block, disc ... 40 oC and +250 oC. > Low recoil permeability along with high coercive force markes highly resistant to demagnetizing fields. > Corrosion ... various sorts of motors , magnetic force machines , sensors , toys, hold magnet systems , crafts , duplicators , novelties , magnetic therapies , etc. Factory ...