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Portable display table
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Exhibition board
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Roasting furnace sealing structure
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Petroleum coke powder mixer
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Draw-bar-box type exhibition rack
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Display-rack chair
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Automatic discharging device of petroleum coke calcining furnace
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Agricultural plow
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Adsorption panel
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Sealing structure of calcinator
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Heat carrier furnace for afterheat obtained from carbon production
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Negative pressure adjusting device of calcinator
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Foldable exhibition table
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Convention and exhibition chair
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