When copper or iron-nickel metal lead frame before the plating process, the surface of the metal oxide layer shall first be removed, thereby increasing the bonding force between the metal substrate and the coating. This section is generally called activation process (descale) process, and therefore the type of medicine mostly from a combination of various acidic substances, sometimes referred to as pickling. Activation syrup usually contains corrosion inhibitors, metal substrates can be properly protected from an excessive bite eclipse (over etching) or soft feet. The company's activation agent after appropriate dilution, can be used directly to copper or iron-nickel material products.