Multiple-purpose hinge series This item has six levels of adjustment for sofa headrests. It can be used in conjunction with the lift cover to increase the stability and comfort of the sofa headrest.This product is a patented product developed by our company, made of high quality iron, durable and easy to install. The product is generally silver in colour, anti-corrosion and rust resistant, good corrosion resistance, strong load-bearing capacity and thickened plates. Through welding, polishing, electroplating and other processes to complete the strong wear-resistant, durable. Can be applied to adjust the sofa backrest, headrest, armrest gear angle so that the sofa headrest has 6 levels of adjustment to make the head more comfortable, can also be used in combination with the sleeve to make the product sofa more three-dimensional, more stable. The size of the product can also be customized to meet your needs, rest assured of the quality, rest assured of the use.1. Customers provide drawings or draft drawings, select required raw materials 2. Our team provided the client with a unique, tailored solution. 3. Creation of the mold following customer confirmation 4. Fabrication of samples and testing for customer to confirm 5.Verify package options and sample quality to complete the customizing process. Customer management system with high technology In order to achieve the automation of customer relationship management business and the collaboration of various functional departments, The company improves the overall management system and elevates the overall management level through the customer management system in order to meet customer expectations with low cost and high efficiency, maximizing，customer satisfaction and loyalty, stabilizing existing customers, continuously attracting new customers, and recovering lost customers.