Напильник, заточка, зачистка, травка, советский

Etching is a group of technological methods for the controlled removal of the surface layer of material from the workpiece under the action of chemicals. A number of etching methods provide for the activation of etching reagents through other physical phenomena, for example, the application of an external electric field during electrochemical etching, the ionization of atoms and molecules of reagents during ion-plasma etching, etc. #file#cleaning#sharpening#soviet#calm#stihl#Husqvarna#husqvarna#lingonberry#grass