Patent Certificates
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Patent - Axial flow Valve
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Patent - Intelligent adjustment Locator
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Patent - An Intelligent Valve Controller
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Patent an Electric Machine
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Patent - One-Piece Diaphragm Valve
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Patent - Liquid Filling Valve
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Patent - Cross Conjoined Valve
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Patent - Three Type Pneumatic Shuttle Valve
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Patent - Three Type High Platform Ball Valve
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Patent - Pneumatic Shuttle Valve
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Patent - Pneumatic Flange Shuttle Valve
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Patent - Balance Type Pneumatic Angle Seat Valve