Durable Material, Built to Last: Our flammable liquid storage cabinet is constructed from Q235 cold-rolled steel, with a fully welded steel body (no rivets, screws, or spot welding). The door panel has a hollow design with a 1-1/2-inch air gap, which helps slow heat transfer and reduce the risk of fires and explosions. The shelf is made of galvanized steel, resisting wear and corrosion, ensuring long-lasting performance even in demanding environments.