ball joint
短语词组
- swivel ball universal joint 万向转接头
- ball -joint 球承;球铰对中
- hollow ball bolted joint 空心螺栓球节点
- ball universal joint 球笼万向节
- Birfield ball -joint 球笼式等速万向节
- Ball -joint products 球销类零件
- ball shape joint 球形节点
- tripod ball sliding joint 三球销移动副 返回 ball joint