钴柱, Cobalt slug

钴箔, Cobalt foil

钴溅射靶, Cobalt sputtering target

钴线, Cobalt wire

铜粉, Copper powder

铜粉, Copper powder

铜粒, Copper shot

铜柱, Copper slug

铜箔, Copper foil

铜箔, Copper foil

铜箔, Copper foil

铜溅射靶, Copper sputtering target

铜纱, Copper gauze

铜线, Copper wire

铜线, Copper wire