Unimirror ® multi-layer nickel plating process, developed by HSCT for the Cu-Ni-Cr and Ni-Cr decorative plating process with high corrosion resistance, consisting of SMB-606 semi-gloss nickel plating process, NBE-628 bright nickel plating process, and NF-609 nickel sealing process, is especially suitable for decoratively electroplating products with high corrosion resistance, such as auto parts, sanitary ware, and so on. Unimirror® NBE-628 Bright Nickel Brightener is a kind of general-purpose brightener for nickel plating process, for example, for the multi-layer nickel plating process with SMB-606 and NF-609 additives. It is also used alone as brightener for rack and/or barrel nickel plating. Unimirror® NBE-668 Bright Nano-Nickel Plating Brightener is an ultra-high corrosion resistance nickel plating process developed by HSCT, compared to the traditional nickel plating process. It can be used with SMB-606 and NF-609 to obtain multi-layer nickel deposit with ultra-high corrosion resistance, Also, it can be used alone as a brightener for rack and/or barrel nickel plating.