an apparatus and process are described in which a multiple continuous electrochemical procedure is carried out on a metallic strip . included in this procedure is a gold - plating step with a specially designed gold - plating cell . also , the gold electroplating is limited to certain areas of the metallic strip where required for a particular application . particularly important is the design of the various electrochemical processing cells so that continuous processing may be carried out on a continuous moving metal strip . also , compatibility with other electrochemical and chemical processes carried out on the continuous strip line , is desirable .