PDF(1384 KB)
PDF(1384 KB)
PDF(1384 KB)
阀门动密封的常用结构、材料及特性
Typical Structures, Materials and Characteristics of Dynamic Seals for Valves
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |