back-up ring
短语词组
- ptee back -up ring 聚四氟乙烯支撐環
- interlocked back -up ring 聯鎖支撐環
- Back -up bearing ring 支承軸承圈
- PTFE Back -up Ring 聚四氟乙烯档圈
- Screw Back -up Ring 螺鏇襯環
- back -up p ring 背位環
- full circle metal back -up ring 全圓式金屬支撐環
- PTFE back up & O-ring 鉄氟龍 返回 back-up ring