1. Premium quality materials: Q235 steels (low-carbon and more security) 2.50mm think door panels providing a stronger, safer door. 3. Have 2.5mm-3mm frames. 4. Sprayed zinc for rustproof. 5. Painted acrylic paint which is often used to car. 6. Hand-forged by well trained and experienced craftsmen. 7. Have a hammered iron threshold built in providing extra protection from water infiltration. 8. Operal inner glass door. Behind the decorative grilles is an "operable ¡°inner glass door -within-a door" allows the homeowner to clean both sides of glass panel, or talk through the door while remaining securely inside of the house. 1. Available in a variety of designs, sizes and species. 2. Inner package: bubble sheets and rubber outside package: wooden cases.