钴柱, Cobalt slug

钴箔, Cobalt foil

钴线, Cobalt wire

铜粉, Copper powder

铜粉, Copper powder

铜卷片, Copper turnings

铜薄箔, Copper Thinfoil

铜箔, Copper foil

铜箔, Copper foil

铜溅射靶, Copper sputtering target