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Door rock apparatus and door equipped therewith
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Citadel door and Door structure equipped therewith
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Fire rated and weather-tight steel door of ship or marine structure
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Security enhancement watertight and weathertight marine steel door
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Cold bending equipment for steel profiles to produce door frame of marine steel door
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Environment-friendly fire-extinguish system of deep fat fryer
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Water meter
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Support for conducting wire of a thunderbolt
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