Durable Construction: Our Flammable Cabinets Are Made Of Q235 Cold Rolled Steel Plate With A Fully Welded Steel Body (No Rivets, Screws Or Spot Welds). It Is Both Sturdy And Reduces The Risk Of Fire. The 1-1/2” Air Space Design Keeps Ignition Sources Away From Stored Flammable Liquids, Ensuring Superior Safety.