Circuit boards are widely used in information electronics industry. The main types of circuit board plating are copper, tin, nickel and gold plating. The main function of the copper plating process is to make electrical connections. The phosphorous copper anode and copper sulfate produced by Younai provide the quality assurance for its good copper plating effect. Tin electroplating is commonly used in circuit board positive process, excellent resistance to pure tin anode has the characteristics of high purity, less mud, can improve the anode utilization rate, reduce production costs. A process of electroplating nickel metal on the surface treatment of the back section of circuit board. The high quality nickel sulfamate solution produced by excellent resistance is applied in this process to produce a low stress nickel layer.