Liyan Factory began its operations in 2016 (1395 in the Persian calendar) in Kamalshahr, Karaj, specializing in the production of flush tank products. With over 5,000 hours of research and development on flush tank reservoirs and touch panels, the company successfully eliminated mechanical components, reducing the likelihood of malfunctions to zero. As these products are designed for built-in installation, their high quality is essential to ensure precise and durable performance.