Thang máy QKS9D Khóa cửa hộp LSF9 300P Thiết bị khóa cửa thang máy

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June 25, 2025
Video Description:
Discover the Elevator QKS9D Door Lock Box, a crucial safety component for Schindler elevators. This hall door lock ensures secure operation by preventing accidental door openings during elevator movement. Learn about its robust mechanical structure, electrical interlock function, and wide application in commercial, residential, and industrial buildings.