We are a factory that specializes in creating innovative and practical products that meet the needs of our customers. Our latest product, the {The wind opens the ventilation window automatically} is specifically designed to improve air flow inside your home or office. This innovative ventilation window is equipped with a special sensor that detects when the wind outside reaches a certain speed. Once the wind reaches the desired speed, the ventilation window automatically opens, allowing fresh air to enter your indoor space. This feature provides an easy and efficient way to keep your environment fresh and healthy. Our product is built with high-quality materials that are durable, reliable and long-lasting. We are committed to providing our customers with the highest level of satisfaction and are confident that our product will exceed your expectations.