Toplink LZ-7001B type roofing welding machine is a new hot air welding machine. We independently research and develop, using advanced hot air heating technology, intelligent electronic temperature control and speed control system, according to different material thickness by increasing or decreasing the counterweight to adjust the weldng pressure , so as to effectively ensure uniform weldings, high-strength, tear, no leakage. The welder is simple, good quality, high-efficiency, widely used, especially for