Co/Co3O4纳米粉末, Cobalt nanopowder

钴块, Cobalt lump

钴柱, Cobalt slug

钴箔, Cobalt foil

钴溅射靶, Cobalt sputtering target

钴线, Cobalt wire

钴棒, Cobalt rod

铜粉, Copper powder

铜粉, Copper powder

铜粒, Copper shot