| 1. | Some pistons have seating rings of metal or leather .
有些活塞上有金属或皮革的密封环。 |
| 2. | Aerospace series - o - ring grooves - dimensions
航空航天系列. o形密封环凹槽.尺寸 |
| 3. | Blank of hard alloy sealing ring for mechanical seal
机械密封用硬质合金密封环毛坯 |
| 4. | The seal rings should be replaced by ship ' s spare
密封环用船上的备件更换。 |
| 5. | Reactively sintered silicon nitride seal ring for mechanical seal
机械密封用反应烧结氮化硅密封环 |
| 6. | Specification for carbon - graphite sealing ring for mechanical seals
机械密封用碳石墨密封环技术条件 |
| 7. | Stress analysis of - shaped ring
形密封环的应力分析 |
| 8. | Retrofit of ball valve sealing ring operating system in longtan hydropower plant
龙潭水电厂球阀密封环操作系统改造 |
| 9. | Rotary shaft lip type seals
旋转轴唇形密封环 |
| 10. | Cylinder head ring gasket
气缸盖密封环 |
