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A kind of motorcycle seat of safe higher
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A kind of motorcycle front lamp
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A kind of motorcycle mounting structure of front lamp
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A kind of motorcycle speedometer check device
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A kind of composite material
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Engine piston cooling device
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Anticorrosion coating for automobile accessories
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High-safety ultraviolet-proof automotive glass and preparation method thereof
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Automobile air bag and preparation method thereof
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Clamping device
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Flame-retardant composite metal material
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Magnetic composite metal material
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Metal material with surface coated with carbon film
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High-performance heat insulation metal material
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Rigid composite metal material
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