HF Conveyor Belt Welding Machine high frequency Canvas welding machine High Frequency Tarpaulin Welding Machine HF Conveyor Belt Welding Machine Using high Qoscillation value is installed in this machine which ... high-quality imported componentsApplication:Used for welding Liquid tanks, canvas, car tents, tarpaulin, air structure, sun belt, inflatable dome, awning, covers, sunshade ...