Plastic steel doors and Windows system, support customization

La description

Plastic steel doors and windows were first developed by West Germany in the late ***0s and started production in ***9. The initial plastic steel doors and windows are single-cavity structure, relatively simple and rough, along with the worldwide energy crisis in ***2, the early seventies better energy-saving effect of plastic steel doors and windows were used in large numbers, but also to promote the improvement of the profile production technology, performance is increasingly perfect, from the original single-cavity profile to the development of three-cavity, four-cavity profile, but also led to the development of Europe and even Asia plastic steel doors and windows. According to incomplete statistics, the use of plastic steel doors and windows in Germany has accounted for *2% of the window market, Austria is *8%, Switzerland, Britain, France, Italy and other developed countries also have more than ****0%; the United States of plastic steel doors and windows in the late seventies began to start, the annual growth rate of use of more than *5%, the Asian region using plastic steel doors and windows in Japan, South Korea, Taiwan and Singapore, Thailand, etc..