... , Electric smelting, Spray painting, Flame plating, Oil injection and Oxidation (aluminum)3. BracketMaterial:Iron, Aluminum, PlasticDiameter ... Electric smelting, Spray painting, Flame plating, Oil injection and Oxidation (aluminum)5.Hook Material:Iron, AluminumColor ... Flame plating, Oil injection and Oxidation (aluminum) Iron, Aluminum Alloy, Zinc Alloy, Plastic, Crystal, Resin, Wooden Curtain rod ...