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Layer door fireproof structure
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Pit safety barrier device
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High-speed ladder sedan-chair door seal structure
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A kind of three face door-opening elevator of machine room
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A kind of Almightiness type elevator car frame structure
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A kind of guide wheel adjustable-angle metal plate counterweight frame structure
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A kind of system compared suitable for elevator effective area
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A kind of machine room sedan-chair frame structure
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A kind of machine room Multi-angle rotary counterweight
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Shallow pit formula modularization installs elevator additional
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A kind of four guide rail sedan-chair frame structure of Cargo Lift
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A kind of safety pin structure
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A kind of concealed climbing ladder apparatus of carriage
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A kind of rotary folding type toeguard
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