... PVC Welding Machine, Auto Hot-air Banner Welding Machine, Banner Jointer, PVC Jointer, Auto Jointer, Auto Hot-air Jointer, Banner Welding Machine, PVC Welding Machine, Hot-Air Welding Machine Technical ... the same perfect seaming effect. Operation Procedure:1. First of all, lighten up the Painting Fabric, target the sew (2-5cm ...