Keeps a good balance thanks to the equal interval fluting of lock pin and hook spanner.

由于锁紧销和扳手槽的等距分布，平衡性好。

youdao

Keeps a good balance thanks to the equal interval fluting of lock pin and hook spanner.

由于锁紧销和扳手槽的等距分布，平衡性好。

youdao