information about Needle valve field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Engineering 25.4M papers | Mechanical engineering 5.6M papers | Structural engineering 2.6M papers | Control engineering 688k papers |
Ball valve 3,899 papers | Globe valve 2,755 papers | Butterfly valve 1,532 papers | |
| Current | |||
Needle valve 839 papers | |||
| Child | |||
Diaphragm valve 0 papers | Four-way valve 0 papers | Shuttle valve 0 papers | Rotolock valve 0 papers |
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