Magnet covers n35-n52, n30m-n50m, n30h-n48h, n30sh-n45sh, 28uh-40uh, 28eh-38eh, Alnico 3-alnico 9 for cast alnico magnet, and alnico3-alnico8hc for sintered alnico magnet; Ferrite magnet covers Y20, Y25, Y30 (C5), Y30BH (C8) and Y35 (C11). 220*220*70.