Triangular key wrench for elevator access and building maintenance - Purpose and benefit - Designed to unlock and access elevators, a practical tool for building maintenance and repair. - Enables quick access to restricted components, helping reduce downtime during service. - Design and portability - Compact and lightweight, easily carried in a pocket or bag for ready availability. - Material and durability - Zinc alloy construction with a corrosion-resistant and rust-proof surface for long-lasting use. - Compatibility - Suitable for electric control cabinets, elevators, water meter valves, faucets, electric cabinets, trains, and related equipment. - Practical use scenarios - Elevator maintenance: open service panels to diagnose and repair elevator systems. - Utilities and plumbing: operate water meter valves and faucet valves during maintenance. - Electrical and transit upkeep: service electric cabinets and train systems as needed.