ESWDA (Sino-Europe Energy-Saving Windows & Doors Development Alliance) is mainly formed by enterprises in ESWDA industrial park and cooperated with well-known domestic enterprises in window & door industry. It is a professional organization of Chinese windows and doors industry that operates on the principle of marketization, specialization and scale. With the fundamental purpose of “serving member factories” and the responsibility of “building the industry #1 platform”, it actively promotes the industry research, resource sharing and information exchange, and comprehensively improves the market competitiveness of enterprises in the window and door industry all over the world.