What is a single-sided blade used for?

This application is too wide. Cover glass cover is used for mobile phones, such as medical catheter cutting, automobile glass, tea picking, etc. Widely used in papermaking, paper products processing, adhesive tape products, films, wires and cables, rubber, aluminum foil, chemical fiber, nonwovens, composite packaging materials, telecommunications appliances, cigarettes, leather, printing, food and clothing industries. The blade is required to have the lowest cutting resistance, the greatest wear resistance and a sharp and lasting cutting edge. The best blade in the world should be a gem, which represents the highest quality of a single-sided blade!