钴柱, Cobalt slug

钴箔, Cobalt foil

钴丝, Cobalt wire

钴棒, Cobalt rod

铜粉, Copper powder

铜粒, Copper shot

铜柱, Copper slug

铜箔, Copper foil

铜箔, Copper foil

铜溅射靶, Copper sputtering target