PVC doors and windows were developed in Germany in the late 1950s and began production in 1959. The original PVC doors and windows were single-cavity structure, which was relatively simple and rough. With the worldwide energy crisis in 1972, PVC doors and windows with better energy-saving effects in the early 1970s were used extensively, which also promoted the improvement of profile production technology. The performance has improved day by day, from the original single-cavity profile to three-cavity and four-cavity profiles, which also led to the development of plastic doors and windows in Europe and Asia. According to incomplete statistics, the use of plastic doors and windows in Germany has accounted for 65% of the door and window market, 60% in the United Kingdom, 64% in the United States, 70% in Russia, 62% in South Korea, and 56% in plastic doors and windows in France.

In China, PVC doors and windows, as a national key chemical building material, are playing an important role in the building’s outer protective structure due to its unique thermal insulation and energy saving effect. With the joint efforts of the whole industry, the product structure and grade of plastic doors and windows have also been greatly improved, and the overall performance level has been further improved. In the domestic construction market, the market share has gradually increased. The market share of the new construction market has reached 50% in 2009, and some large and medium-sized cities in the northern heating area have reached 70%. The application rate of large and medium-sized cities in the cold regions has reached more than 90%.

doors and windows have excellent physical and chemical properties, and can be widely used in harsh environments such as wind, rain, high heat, cold and corrosive gases. It is an ideal and reliable building door and window.