The nitric acid three plunger pump seal box structural design is unreasonable,creates seals easily to expire,seriously affected and restricted the straight niter instrallation production.

 
  • 硝酸三柱泵密封結構設計不合理,造成密封易失效,嚴重地影響和制約了直硝裝置濃硝酸的生產(chǎn)。
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