It is of built-in type, double seal face, multi-spring, unbalanced type and drive sleeve transmission.

内装式、双端面、多弹簧、非平衡型、传动套传动。

youdao

It is of built-in type, double seal face, multi-spring, unbalanced type and drive sleeve transmission.

内装式、双端面、多弹簧、非平衡型、传动套传动。

youdao