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Green metal gate with intercom and notice
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Green metal gate with intercom and notice

Download this free HD photo of technology, daily life, residential building, and security system in 상하이, 중국 by DOKYUNG KIM (@jindujiong)

A map markerShanghai, 상하이 시 중국
Calendar outlinedPublished on October 19, 2025 (UTC)CameraSafetyFree to use under the Unsplash License
technologydaily liferesidential buildingsecurity systemhome securityaccess controlbuilding entrancedoorbellintercomapartment doorurban environmentkeypadbuilding managementaccess managementresidential security

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