전력 절약 전기 볼트 잠금 키 실린더 LED 표시 JS-210SLD 긴 수명

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August 28, 2025
Video Description:
Discover the JS-210SLD Power Saving Electric Bolt Lock with LED Indication, designed for long lifespan and energy efficiency. Perfect for high-security areas like banks and prisons, this fail-secure lock features advanced photoelectric control technology and a durable stainless steel bolt.