This product is our company's patented product, the product name is backrest mobile hinge. It is designed in accordance with the mechanics of the human body. Referring to the details of a number of products, after iterative updates, the combination of iron and plastic achieves two advantages, the material is resistant to wear and tear, stable and prevents swaying, and high steel is chosen to cushion and eliminate noise. The product is suitable for sofa backrest and sofa armrest. Easy to install.The main material is iron, the process is welded splicing, you can push it back and forth, the front push state is mainly used as a sofa backrest function to sit, the back push state can lie on the sofa, it is the best choice for dual use. The edges are neat and flat, the installation screws are welded more firmly under high temperature, and the metal parts are fused to each other to withstand high weight. Support plate and support iron frame using pressure open, fine electro-chromium plating process, environmentally friendly electroplating good fluidity, can resist corrosion is not easy to wear not easy to oxidize not fade, thickened material delicate, with high durability, thickened rivets, activities more smoothly.We have experienced designers and professional engineers who can provide customization service. We have our own factory and automatic powder coating workshop, which can meet different needs of our customers. And we have rich experience of working with different customers for many years, we are confident to provide customized services to satisfy our customers.