Investigations were made on the semi-bright nickel plating additive DN-2, bright nickel plating additive BN-3 and the properties of Composite coatings.

• 研究了新型半光亮镍添加剂DN-2,光亮镍添加剂BN-3及组合镀层的性能,并与美国Udylite公司、M &T公司及英国Canning公司同类产品进行了对比。