The machine can print on the concave and convex surfaces of objects of different materials and shapes, with simple operation, reliable quality and clear and beautiful printed patterns. It is an ideal coding device for food, canned food, beverage, cosmetics, electrical appliances, pharmaceutical and other industries, and can code the factory date, guarantee period, batch number, bar code and pattern on the surface of products. Suitable for coding on uneven surfaces of any parts of metal, plastic, glass, enamel, film nylon bags and other products. 3. You can type the date and trademark on the eggs.