... climbing wear,ski suit,down jacket,tent etc through hot air to reach the sealed and waterproof effect completely. Feature ... is changed.5,Speed governing by PWM electric motors of Microcomputer, improve its characteristics and achieve zero current inverting ... voltagedrop: 18 – 30mm10, Width of press roller: 25.4 – 30mm11, Diameter of press roller: 65mm12, Width of hot air trachea: 25mm13, Noise: Less ...