With the temperature difference between morning and evening, many people also have dry throat and cough. And to solve the autumn dryness, the first choice is of course to eat pears. Because pears can moisten the lungs, eliminate phlegm and reduce dryness,
Gypsum powder is a widely used industrial and building material. Its main component is CaSO4. Gypsum powder is mainly used in cement additive, and can also be used to gypsum products such as gypsum board, gypsum model, gypsum ceiling, gypsum block, etc.