After engraving the product name and trademark pattern, continue to spray it on the surface of the steel plate that has been sprayed with paint; the second method: use post-it notes to engrave the text and trademark pattern, and apply them manually. The text and trademark pattern engraved on the sticky note are pasted onto the spray-painted surface of the steel plate; the third method: directly handwriting or painting with oil paint. This is also my usual method. Give it a try now and wish you success!