The production practices prove that bright Sn-Pb alloy coatings with fine and compact crystal structure, excellent solderability and in different Pb content can be obtained from the plating bath made up with the above concentrates.

• 生产实践证明；该镀液能获得不同铅含量的、可焊性优良且镀层结晶细致而光亮的Sn-Pb合金镀层.