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2019
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Invention
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Vacuum large-capacity electrically controlled proportional valve. A vacuum large-capacity electri... |
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Invention
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Vacuum electrically controlled proportional valve. A vacuum electrically controlled proportional ... |
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Invention
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Electrically-controlled large-capacity proportional valve. An electrically-controlled large-capac... |
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2018
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Invention
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Two-stage intake and two-stage discharge structure of electrically controlled proportional valve.... |
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Invention
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Vacuum-based energy-saving large-capacity precision pressure regulation valve. A vacuum-based ene... |
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Invention
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Vacuum-keeping multistage vacuum-generating and vacuum-destructing valve. A vacuum-keeping multis... |
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2017
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Invention
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Structure of energy-saving precision pressure adjusting valve. An improved structure of an energy... |
