Copper, aluminum
Copper sludge
Copper and aluminum items
Concentrated copper
Copper ore
Copper ore
Copper wire scrap millberry
Copper ore, copper concentrate, coarse copper
Copper, aluminum
PCB material, such as fr4 , aluminum base, copper base, solder, etc.
Copper ore
Copper sulphate
Copper ore
Copper ore
Brass and copper
Aluminium, copper
Copper, aluminum
Aluminum & copper
Copper ore
Copper ore