... -280mm c)Coating: Zn,Ni,Gold,Epoxy,etc Ferrite Magnet a)Grade: Y20,Y25,Y30,Y35,etcb)Size: D3-280mmc)Coating: Zn ... their low cost and simply manufacturing process, Ferrite magnets enjoy a very wide range of applications, from motors and loudspeakers to ... products could be magnetized or un-magnetized as clients specified.Grade Y25,Y30,Y35 with many style are available.The size ...