piston ring
短语词组
- piston oil ring 活塞油环
- piston compression ring 活塞压缩环
- piston guard ring 活塞护环
- wiper piston -ring 刮油活塞环
- piston valve ring 活塞阀填密环;变量阀环
- Piston sealing ring 活塞密封圈
- piston and ring 活塞和活塞环
- piston packing ring 活塞胀圈;活塞填料环;活塞环
- equalizing piston packing ring 平衡活塞密封圈 返回 piston ring