... machine , high frequency leather embossing machine ,high frequency logo press machine ,high frequency logo embossing machine, high frequency PVC bags ... dipoles, such as PVC, PA and acetates. When a press/die descents to apply pressure on the surface of two ... welding, pads embossing, cushion embossing and s-type pads welding, electric car ottomans embossed, pads welding, locomotive cushion, seat welding ...