Model Illustration：

JZQ stands for commutators used in household electrical equipmeat electrical machingery；DZQ stands for commutators used in dynamical tools electrical machinery；QZQ stands for commutators used in automobile and motorcgcle eletrical machinery。

The fourth letter in a model :A stands Riser-type Commentators；B stands Riser-type Commentators；C stands Tang-type Commutators；D stands Tang-type Commutators；E stands Planar-type Commutators

The two numbers behind LX : ten`s place stands for a commutator`s ;"1"stands for electrolyis copper;"2"stads for l_g electrolyis copper；Unit`s place stands for whether there in a bushing in the commutator`s inner hole;"1" stands for with bushing ;"2" stands for without bushing.

The numbers behind stands for the desrgning order。