Labeling is to stick a roll of self-adhesive paper label (paper or metal foil) on the PCB, product or specified packaging.

Hot stamping, commonly known as "hot stamping (hot silver or customer-specified color)", refers to printing designated text and patterns on the surface of plastic materials and other materials, or embossing various embossed book titles or patterns by hot pressing.

Spraying is a coating method in which spray guns or disc atomizers are used to disperse into uniform and fine droplets by means of pressure or centrifugal force and apply to the surface of the object to be coated.

The electroplating process uses the principle of electrolysis to coat a layer of metal on a conductor. Electroplating refers to a surface processing method that uses the base metal to be plated as a cathode in a salt solution containing pre-plated metal to deposit the cations of the pre-plated metal in the plating solution on the surface of the base metal through electrolysis to form a plating layer.

Blister is a kind of plastic processing technology. The main principle is to heat the flat plastic hard sheet to soften it, adopt vacuum to absorb it on the mold surface, and cool it to form. It is widely used in plastic packaging, lighting, advertising, decoration and other industries.