The AB lock core features a premium combination of an all-steel lock body and a pure copper core, delivering upgraded durability and security. The steel lock body offers exceptional impact resistance against forced entry, while the polished copper core ensures corrosion resistance and buttery-smooth operation. With its advanced anti-picking and anti-burst design, the multi-layered security mechanism effectively prevents both technical and physical attacks, creating an impenetrable shield for your home. Whether for daily use or extreme conditions, the AB lock cylinder guarantees long-lasting, reliable protection.