Development status and trends of energy-saving doors and windows in buildings in my country
The development status and trend of energy-saving doors and windows in buildings in China 1. Overview Architectural doors and windows have a long history in our country , the concept of windows began …
A brief overview of the development of polyurethane in my country
my country’s polyurethane industry started Beganin the late 1950s. In 1958, Dalian Dyestuff Factory began to study toluene diisocyanate. In 1962, it built a toluene diisocyanate production devic…
Production status of polyurethane raw materials in my country
With the continued rapid growth of our country’s economy, domestic The demand for polyurethane has reached more than 15%. The main raw materials of polyurethane, MDI, TDI, and polyether, are in huge d…
my country is a major producer of sugar alcohols, and demand in the food and pharmaceutical fields continues to grow.
Reprinted from New Thinking Network: Sugar alcohol is a kind of polyol, which is produced by reducing the aldehyde or ketone group on the sugar molecule into a hydroxyl group. It has a wide range of r…
Are concrete admixtures widely used? Quickly understand the development status of concrete admixtures in my country
Concrete is a building material with high demand and wide application coverage. The application of concrete admixtures improves the performance of concrete. It can increase the construction speed and …
