... )=22,25,32,38,63CCB-003Metal rollerΦAX(B+L)B,C is without magnetic part,it is easy ... Classify by magnetic:A,Magnetic roller with full magnet; B,Two ends of magnetic roller without magnet; C, ... by shape:A,Magnetic roller with hook or not; B,Rotundity; C,Square.3.Classify by intensity of ... magnetic data is over 10000GS.4.Classify by temperature:A,Normal(below 60C); B,Middle(above 150C); C,High(below 400C ...