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Breast board fixing device and rail guard
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Handle subassembly and door and window system
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Adjustable hinge
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Sliding window system
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Partition connecting device
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Length adjusting assembly, transmission rod and window body
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Shock-absorbing device
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Lock set
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Roller sliding mechanism and roller moving door and window
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Connecting device
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Portable movable guardrail
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Locking mechanism and lock uint
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Door and window temperature control locking device
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Adjustable driver
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Buffer escapement and door and window
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Pulley and sliding window
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Handle and door and window with the handle
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Driver and door and window structure
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Automatic locking device and door and window
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Wind brace
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