The main material is PVC soft curtain. It has functions such as heat preservation, moisture retention, dust prevention, pest prevention and sound insulation, which can keep the workshop in a constant temperature, humidity and clean working environment. The opening speed is extremely fast, up to 0.6 meters per second or even higher. It is suitable for industries with high environmental requirements such as food, medicine, and electronics. It can quickly isolate the space, save energy and improve work efficiency.