HJ-DDX electroplating production line can be divided into automatic, semi-automatic and economic types. Automatic production line is composed of copper plating line and chrome plating line. Copper plating line is used to copperizing and chrome plating line is used to chrome coating after gravure cylinder engraving. It implements PLC control or microcomputer program control. Semi-automatic production line achieves the single-machine automatic control program, with the advantages of long service life, convenient maintenance. Eco-production line, which adopts manual control, is the first choice for the small and medium-sized enterprises to improve the quality of products.