1.Polyester car seat/safety belt webbings; 2. ... questions, you can contact me! :)manufacture polyester length optional car seat belt webbings customized high tenacity colorful safety ... all densities.33-40g/mClass 2---High-strength polyester material. 35-50g/mClass 3---Nylon material. ... passenger vehicles and commercial vehicles, such as bus, car, passenger car, coach, truck, jeep, van, mini-vehicles SUV ...