铅合金电镀层 meaning in Chinese

metallic coatings-electroplated coatings of tin-lead alloys

Specification for electroplated coatings of tin lead alloys
锡铅合金电镀层规范
Metallic coatings - electroplated coatings of tin - lead alloys
金属覆盖层锡-铅合金电镀层
Electroplated coatings of tin - lead alloys
锡铅合金电镀层
Metallic coatings . electroplated coatings of tin - lead alloys . specification and test methods
金属镀层.锡铅合金电镀层.规范和试验方法