Doors and windows are divided into enclosure members or partition members according to their locations. Different design requirements must have thermal insulation, heat insulation, sound insulation, waterproofing, fireproofing and other functions. The new requirements are energy-saving. The heat lost in cold areas due to doors and windows gaps accounts for about 25% of the total heating consumption. The requirement of the sealing of doors and windows is an important part of energy-saving design. Doors and windows are important components of building enclosure systems.
Doors and windows are important components of architectural shapes (virtual and real contrast, rhythmic artistic effect plays an important role), so their shape, size, proportion, arrangement, color, shape, etc. have a great impact on the overall shape of the building.
my country's modern architectural doors and windows developed in the 20th century. Metal doors and windows represented by steel doors and windows have a history of 90 years in my country. However, the golden age of the development of contemporary architectural doors and windows in China was the twenty years from 1981 to 2001.
After the founding of New China, steel door and window enterprises in Shanghai, Beijing, Xi'an and other places have built large steel door and window production bases, which have been widely used in industrial buildings and some civil engineering projects. In the late 1970s, the country vigorously implemented the resource allocation policy of "steel instead of wood", and the country set off a climax in promoting steel doors and windows, steel scaffolding, and steel formwork (referred to as "three steel instead of wood"), greatly promoting the development of steel doors and windows.
The 1980s was the heyday of traditional steel doors and windows, and its market share once reached 70% (in 1989). Aluminum alloy doors and windows was introduced to my country in the 1970s, but it was only used in foreign embassies in China and a few foreign-related projects. With the in-depth development and achievements in the rectification of national economic governance, the aluminum door and window series has also developed from 4 varieties and 8 series in the early 1980s to more than 40 varieties and more than 200 series, forming a relatively developed aluminum door and window product system, establishing its status as a pillar product.
Internet+ has changed people's lifestyle and work patterns, and created new online marketing methods. The Internet era is coming. If we cannot accept this era, we may fall behind and be eliminated.
Doors and windows are the physical and manufacturing industries as traditional production industries. If Internet+ is a great addition to the development of door and window companies, then the first thing door and window companies must ensure is that their products are excellent and qualified. The Internet has opened up people's horizons, enriched people's lives, and brought new development directions to door and window companies.
After careful consideration, the person in charge of Hunan Doors and Windows decided to use the Internet model, based on offline and the Internet as a channel, build a mall through mini programs, promote it through public accounts, and conduct precise marketing through communities, and ultimately realize the new model of Internet + doors and windows. After careful investigation, Shanghai Yuelan Group chose Shanghai Yuelan Group. Shanghai Yuelan Group not only met all the needs of building a platform, but also went further and helped Hunan door and window platform achieve leapfrog development through capital operations, and eventually became an influential company.
Shanghai Yuelan Group is an Internet technology enterprise based on entities and dominated by information technology and media promotion. We will effectively solve the problem of digital transformation of operation in traditional enterprises, create the most suitable Internet solution for enterprises, help enterprises reshape the Internet confidence, embrace the Internet in a comprehensive and in-depth manner, make good use of the Internet as a carrier, and combine 5G to innovate cloud technology to promote the Internet market to become more transparent, fair, and just. Based on the Internet+ policy, we will help small and medium-sized enterprises get out of the predicament and solve problems such as funding difficulties, and achieve a double harvest for enterprises and platforms. After listing, companies that cooperate with Shanghai Yuelan Group can enhance the corporate brand image, company popularity and influence, attract venture capital and financing, issue bond financing, use equity to motivate key employees, and use equity to promote investment promotion, thereby enhancing risk resistance and laying a solid foundation for future development.
