Hot Air Seam Sealing Machine For Waterproof be used to make Nylon-PVC, nylon-PU, high-class ... temperature with high stability slightly varies between±2°C, Warning device for temperature upper limit is installed to protect heating wire ... , high-class rain coats, wind coats, snow-suits, tents, military waterproof coverings, waterproof bags, motorcycle covering and boat covering, etc.