On July 2, 2022, the fifth Annual meeting of China Building System Doors and Windows Alliance and Beijing University Guanghua Class 2022 Exchange Association (hereinafter referred to as "two sessions") was held in Foshan, Guangdong. The two sessions was held by the union real estate of sub-chamber of energy-saving Windows and doors, Beijing University Guanghua classmates exchange association, Beijing window productions technical consulting service center with guests from all over the country to explore the road of the sustainable development of China's doors and Windows system. It gives full upgrades to the system door industry and effectively promote the industry to a new level. It also promote our country system door window industry and even national economy society to a healthy development.

This conference gathered together industry associations and 100 well-known doors and Windows enterprise management leaders. Mr. Li Haitian, as a member of Zhaoqing CPPCC, president of Zhaoqing Shaoyang Chamber of Commerce and Chairman of Haffner Group, was invited to attend the two sessions.

The two sessions also convey an important message as the national "double carbon" strategy and "carbon double control, energy-saving priority" has become one of the important tasks of the current development of  system doors and Windows industry. Haffner Group as aluminum deep processing of intelligent equipment enterprise, with a positive response to the national strategy and layout adjustment and optimization of depth, constantly blaze new trails, we will develope more higher technical quality intelligent working machines aluminium windows and doors for more contribusions on China's building system doors and windows standardization.