Hongyi Outdoor Furniture Factory utilizes three primary frame materials to create durable and stylish outdoor furnishings. Aluminum frames stand out for their lightweight nature and exceptional corrosion resistance, making them ideal for coastal environments. The factory employs advanced powder-coating technology that creates a protective layer against UV radiation and moisture. Stainless steel frames represent the pinnacle of structural strength, particularly grade 304 stainless steel which contains 18% chromium and 8% nickel for superior rust resistance. These frames feature welded joints that ensure decades of reliable performance in commercial settings. For those seeking natural elegance, Hongyi offers premium teak wood frames harvested from sustainable plantations. This dense hardwood contains natural oils that repel water and insects, developing a distinguished silver-gray patina over time. Each material undergoes rigorous quality testing, including salt spray tests for metals and moisture content verification for wood. The factory's engineering team has developed proprietary joining techniques that accommodate material expansion and contraction due to temperature changes. Customers can select frames based on their specific climate conditions, weight requirements, and aesthetic preferences, with each material offering distinct advantages in durability, maintenance needs, and visual appeal. Hongyi's material selection represents over two decades of research into outdoor furniture performance across different environmental conditions.