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Piston air-compression type jet engine
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Lime-based molten iron desulfurizer and preparation method thereof
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Treating agent feeding device for water environment treatment
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Water sampling device for environmental monitoring
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Water purifier of usefulness is administered to high-efficient water environment
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Wastewater treatment method in membrane treatment system
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Water-based stamp-pad ink self-mixing agent and preparation method thereof
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natural gas station gas transmission process
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A kind of natural gas line sampling valve
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A kind of liquid conveying special service valve
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A kind of dedicated gypsum based self-leveling mortar of floor heating backfill
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A kind of resistance to sheet erosion flat gate valve
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A kind of water supply pipe current limliting sealing valve
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A kind of anti-leak control valve
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A kind of Anti-leakage seal valve
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A kind of sealed valve for solidliquid mixture circulation
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A kind of solid-liquid blending transportation pipeline sealed valve
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A kind of quick mixing plant of gypsum based self-leveling
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A kind of shockproof on-slip lane and its construction technology
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