Lead without oxide layer is bright in color, high in density, very low in hardness, can be cut with a knife, and has strong ductility but weak ductility. Lead without oxide layer is bright in color, high in density, very low in hardness, can be cut with a knife, and has strong ductility but weak ductility. Lead without oxide layer is bright in color, high in density, very low in hardness, can be cut with a knife, and has strong ductility but weak ductility.