... sealed on the position of knitted stitching for waterproof PrOduct UsageHot air seam sealing machine throug hot air,pressure that make the ... resistance.Apply to ski wear,waterproof jacket, rainsuit,down jackets,diving suits,etc.Hot Air Seam Sealing Machine- Precision stepper motor,speed ... m/minWorking pressure: 3 - 3.5 kg/cm2 hot air taping machine