Sunmay Plastic Accessories Corporation Limited specializes in window trickle vents, window ventilators, and customized ventilation solutions. With years of experience, we provide products that enhance indoor comfort, airflow efficiency, and energy performance. Our vents fit uPVC, aluminum, and timber windows, featuring easy installation and durable materials. We also offer custom solutions so clients can choose the size, color, and design that best fits their projects. At Sunmay, we value quality, innovation, and customer satisfaction, earning trust in both domestic and international markets.