In the etching process, the speed is a very important processing parameter. The speed of etching determines the processing cycle and product quality. The faster the speed, the shorter the processing cycle, and the higher the production efficiency, but the faster the speed is?CoexistenceLet ’s take a

Introduction: Hitting the convex, a special process technology in the surface finishing of printed matter, the use of embossing can make the printed matter have a three-dimensional effect, and the overall structure also has rich layers, adding more and more intense artistry. It is an environmentally