back up ring
短语词组
- back -up p ring 背位环
- ptee back -up ring 聚四氟乙烯支撑环
- interlocked back -up ring 联锁支撑环
- PTFE Back -up Ring 聚四氟乙烯档圈
- Screw Back -up Ring 螺旋衬环
- full circle metal back -up ring 全圆式金属支撑环
- BACK UP RING KIT 备份环套件;备份圆环套件
- Back -up bearing ring 支承轴承圈 返回 back up ring