The curtains used in railway passenger cars are rigorously tested for durability and safety. These curtains comply with GB8410-2006, T-1095, and special fabrics comply with N380 EN45545 for flame retardancy. In addition, they undergo sunshade durability testing, where they are tested to withstand up to 30,000-50,000 stretching cycles. The plastic components used in the curtains are also subjected to high and low temperature variation testing, ensuring that they do not become deformed or brittle over time. With these rigorous tests, passengers can feel assured that the curtains in railway passenger cars are both safe and reliable.