Built-in gluing system Advantages: By integrating the gluing process and the coating process using the same die head, the production efficiency is significantly improved. 2. It can adopt flexible gluing methods and multiple layers of glue. 3. Customized according to customer requirements External gluing system Advantages: The gluing process is flexible (allowing for any number of glues) and can be quickly changed. 2. No risk of glue leakage 3. Customized according to customer requirements