What is the use of the published sulfuric acid paper? What's the difference between it and a movie?

Kraft paper, also known as plate-making transfer paper sulfate, is mainly used in printing and plate-making industry. It has the characteristics of pure paper, high strength, good transparency, no deformation, sun resistance, high temperature resistance and aging resistance, and is widely used in manual drawing, pen/ink jet CAD plotter, engineering electrostatic copying, laser printing, art printing, document recording and so on. There are 63gA4, 63gA3, 73gA4, 73gA3, 83gA4, 83gA3, 90gA4, 90gA3 and other specifications. -Sulfuric acid paper is a kind of translucent paper, and film is a kind of film. Transparent paper is usually used for printing. Sulfuric acid paper and film with pictures and texts are printed on ps plate. After printing, the light is left on ps plate, and then printed on PS plate. Check some knowledge about printing, because there should be.