Fourth, the magnetic circuit design According to the current production level of permanent magnet materials in China, the M7130 suction cup uses barium ferrite as the permanent magnet, the size is 65×65×13mm, and its residual magnetic induction intensity B_r=0.38～O.42T, coercive force H_o =2000～2700O_(?), the maximum magnetic energy product (BH)_(?)=270~320TOe, Curie point 450°C, check
magic Drawing Board, glow in the dark drawing board, glow doodle board
3D Light Drawing Board,Illuminating Drawing Pad,3D Light Up Drawing Board,3D Glow Drawing Board
Guangdong Jishengke Industrial Co., Ltd. , https://www.suronart.com