A3 professional automatic book binding glue machine is a professional-grade tool for creating perfect-bound books, typically used in print shops or offices. These machines automatically mill the book spine, apply glue, and bind the cover to create a durable, professional finish. Key features include high binding speeds (up to 140-300 books per hour), the ability to handle thick books (up to 1.4" or 35mm), and precise, even gluing for a high-quality product. https://www.crossway-industry.cn/goods