Where is the better Lead

Where is the better Lead? For many people this is a strange object, and here's the introduction:

Lead is soft and ductile weak metal, toxic and heavy metal. The original color of lead was white, and the surface of the air was quickly covered by a dark gray oxide. It can be used for construction, lead-acid batteries, warheads, shells, welding materials, fishing equipment, fishing equipment, anti-radiation materials, trophies and some alloys, such as lead tin alloys for electronic welding. Lead is a metal element that can be used as a material for sulfuric acid corrosion, ionizing radiation, battery and so on. Its alloy can be used for lead, bearing, cable cover, etc., and also can be used for sports equipment lead ball.