A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A fingerprint identification popup key comprises a key handle and a key rod. A hiding space is formed in the key rod. A key sheet can be telescopically arranged in the hiding space. The hiding space is matched with the key sheet in size. The key is provided with a fingerprint identification device.
A fingerprint identification popup key comprises a key handle and a key rod. A hiding space is formed in the key rod. A key sheet can be telescopically arranged in the hiding space. The hiding space is matched with the key sheet in size. The key is provided with a fingerprint identification device.