The Lead is used extensively around the world. For example, the electronic circuits within the engine room to these circuits can be interactions with the sulfuric acid from the battery that is causing the corrosion both the PCB and the solder alloys. Even in the PCB circuit or the electronic equipment that is used in a device that is installed in the sea. For example, PCB of offshore wind turbines it might be in contact with the sea water which has a salinity may be corrosion from salt water.