1200 Jin of copper how many Jin of copper can be left?

Does the subject want to ask "1200 Jin of copper wire can strip out how many Jin of copper"? About 936 kg. One kilogram of waste copper wire can strip about 0.78-0.87 kilograms of waste copper, and the minimum copper output is 1200×0.78=936 kilograms. Copper is a metal element and a transition element, with chemical symbol Cu and atomic number 29; Pure copper is a kind of soft metal. When it is just cut, its surface is red-orange with metallic luster, and the simple substance is purple. Good ductility, high thermal conductivity and electrical conductivity, so it is the most commonly used material in cables, electrical and electronic components, and can also be used as building materials to form a variety of alloys.