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CN111946873A
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Automatic drainage type one-way valve for preventing water from entering
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Oil delivery valve with oil distribution structure and machining process thereof
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Water-saving water valve with throttling and flow-limiting structure and processing technology thereof
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Antirust coating for check valve and preparation method thereof
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Backflow type double-end valve for hydraulic leveling
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A kind of dedicated anti-corrosion primer of gate valve and preparation method thereof
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A kind of ceramic modified ptfe composite of valve seal nano microcrystalline
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A kind of manufacturing method of composite material electromagnetic valve
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A kind of valve seal carbon nano-fiber modified polytetrafluoroethylcomposite composite material
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A kind of valve seal ptfe composite of sound-absorbing and preparation method thereof
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A kind of composite material and preparation method for valve seal
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A kind of valve surface oil-removing cleaning agent and its cleaning device
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A kind of metal valve surface anticorrosion is anti-oxidant to use nano ceramics composite coating
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A kind of composite coating for cast iron valve and its prepare painting method
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A kind of valve ramming processing nanometer tantalum carbide complex sand material
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A kind of special grinding agent of elastic sluice valve with wedge-shaped sealing face and preparation method thereof
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The soft sealing gate valve rubber seal cover material and preparation method of a kind of low compressive deformation
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A kind of gate valve rod rubber sealing ring sizing material and preparation method thereof
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A kind of gate valve body turnover end flanges special-purpose polishing agent and preparation method thereof
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Special antisepsis finishing paint of a kind of gate valve and preparation method thereof
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