KNOWLEDGE ASSET
422 US4703939 Mechanical seal for pumps 泵用机械密封
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| File | 422__US4703939_Mechanical_seal_for_pumps_泵用机械密封.pdf |
|---|---|
| Type / category | reference_pdf / references |
| Section | Applications · chemical-process |
| Organization | — |
| Authors | — |
| Language | — |
| Rights / access | unknown / internal |
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