Our business holds a patent for a product called the backrest moveable hinge. Its design considers the mechanical operation of the human body.Iterative updates demonstrate, with reference to the details of various products, that the use of iron and plastic has two advantages: the material is strong, stable, and prevents swaying, and high steel is chosen to absorb and eliminate noise.Both the armrest and backrest of a sofa can be used with the product. simple to install.The main component is iron, and the process entails both welding and splicing. It can be pushed both forward and backward; the front push condition primarily acts as a backrest for a sofa, and the back push condition enables you to recline on the sofa.The metal elements are fused to one another to endure high weight, the edges are clean and flat, and the installation screws are welded more firmly under high heat. Support plate and support iron frame using pressure open, fine electro-chromium plating process, environmentally friendly electroplating good fluidity, can resist corrosion, is not easily worn, is not easily oxidized, and does not fade. Thickened material delicate, with high durability, thickened rivets, activities more smoothly.As a manufacturer, we are able to offer the best quality products at the most affordable prices. We understand the importance of long-term cooperation, and we have a dedicated team for product testing, while you can absolutely rely on our after-sales service. Working with us can save you money on production, selection time, after-sales service, and other costs.