Manufacturing billboards and signs requires accurate and durable seams. This is achieved by utilizing top quality RF Welding and RF Sealing equipment. We have a full line of equipment available to address any size operation from standard Deep Throat equipment to Automatic Traveling Bar welders featuring our patented PLC equipped system with controlled loop feedback for real time power control. Cosmos and Kabar RF Welding and RF Sealing Machines have manufactured thousands of custom billboards, banners, signs, and awnings.