As you know the specification of Hcj is the most important influence factor for the speaker's timber
For regular round size we can control
High Magnet stability and Flux consistency
The ranger of the finished product' Flux can be controlled ±4%(±30mWb)
The range of the Hcj can be controlled more narrower Such as 35H Series :17-18KOe
Coating: Zn, Ni, NiCuNi, Chemical Ni, NiSn, Parylene
Has good Salt spray resistance , excellent strength, optimum adhesion and other Characteristics.