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Counterweight safety tongs device
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A kind of steel band type elevator
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A kind of rloomless cargo ift
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A kind of elevator door is anti-to take off device
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A kind of anticollision elevator door
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A kind of elevator car wall of noise-reducing structure
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A kind of T-type guide rail drilling-hole positioning device
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A kind of shallow pit ladder
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A kind of elevator door
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A kind of elevator sliding guide shoe
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A kind of anti-step mounting structure for stepping on sky of escalator
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A kind of elevator weighing apparatus and Weighing method
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A kind of escalator for automatically adjusting handrail
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A kind of elevator rolling bearing
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A kind of door of elevator striking experiment device
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A kind of home lift safety guard
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A kind of telescopic toeguard
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