collaborated with an office furniture brand to customize hardware connectors for office bookshelves. Using high-strength zinc alloy material, through precision die-casting and grinding processes, the connector has an invisible design, fitting seamlessly with the bookshelf boards without affecting the overall beauty, with a load-bearing capacity of 50kg per piece, eliminating the hidden danger of bookshelf loosening and tilting. Equipped with reinforced screws and anti-slip gaskets, it is easy to install without complex tools. The surface is electrophoretic treated, rust-proof and wear-resistant, suitable for various office bookshelves such as wood and metal. This customized connector helped the partner increase the installation efficiency of bookshelf products by 60% and sales by 44%.