TradeVerify 30 years, to win the quality and quantity. Ambition, Ingenuity, and Expectation, Joydon System meeting you with exquisite enjoyment.Liaoning Joydon Aluminum Building System Co., Ltd is the first system company in the world which set up system material research and development, production, testing, system windows and doors designing, service department. The main products are thermal break aluminum doors and windows. 30 years focus on the classic system products through all the country and has been unanimously approved by customers, as the brand pioneer at thermal break aluminum doors and windows.The company has a professional Research & Development team, independent research and development profiles and supporting accessories for thermal break aluminum doors and windows system. Inherited the spirit of Chinese craftsmen, making our products more perfect than your imagination.Liaoning Joydon Aluminum Construction System Co., Ltd. "with the product for the benefit of all the people" for the soul of enterprises. Our company using systematic and standardized management to provide customers with cost-effective thermal break aluminum doors and windows. Win the trust of our customers, and also set a new standard for industry, greatly promoted the domestic system thermal break aluminum doors and windows industry development, It has profound historical significance for building energy saving.