With a long history and splendid culture, Beijing is one of the first batch of national historical and cultural cities, one of the four ancient capitals of China, and the city with the largest number of world cultural heritage in the world. The 3060 year history of city construction has nurtured the Forbidden City, the Temple of Heaven, the Badaling Great Wall, the Summer Palace and many other places of interest. As early as 700000 years ago, the primitive tribe "Beijingers" appeared in the Zhoukoudian area of Beijing. In 1045 BC, Beijing became the capital of Ji, Yan and other vassal states.Asia Waterproof casing partner Zhongyuan valve fittings China Beijing online promotion sub-station more China Beijing regional knowledge: Since 938 A.D., Beijing has become the capital of Liao, Jinzhong, Yuandu, Ming, Qing, and the Beiyang government of the Republic of China. It became the capital of the People's Republic of China on October 1, 1949. On January 11, 2019, the Beijing municipal administrative center officially moved into the Beijing sub-center.Waterproof casing service provider Zhongyuan valve fittings is located in the Eurasian continental plate, bordering the Pacific Ocean, and shipping is convenient. Zhongyuan valve fittings has a service team for Asia Waterproof casing customers, which can provide reasonable Waterproof casing coal gas solutions for China Beijing Waterproof casing customers!