We use Duplex System when make our gates: Galvanized Steel and Powder Coated Paint. Galvanized Steel is iron that has been through a chemical process that protects the steel from rust and corrosion. The steel is submerged in molted zinc at temperatures greater than 800°F. This process known as galvanization, permanently bonds the zinc to the steel. The zinc is now a shield for the iron. Powder coating is the technique of applying dry paint to an item. The item(s) are then placed in an oven and heated in temperatures that range from 300 to 400°F (depending on the powder). When powder coated items are installed correctly and maintained, they should be permanent. Unlike conventional paints, powder coated paints will not peel, chip or crack. When powder paint is applied to galvanized steel, this is referred to as the Duplex System. Powder coating greatly increases the already long lifespan of galvanized steel. The Duplex System is the best process used today to protect against any weathering affects of our environment on steel. The main advantages of ALEKO gates: 1. The top spear is made of cast steel instead of cast iron. Cast steel is a lot stronger than cast iron. 2. Every bend is made very carefully to make sure the curve is smooth and nice. 3. ALEKO uses the best powder to get the best quality finish. 4. Packaging is very strong for damage free, long distance delivery. 5. Powder coating process is done strictly to specifications. Color: Black. Material: Metal.