└ Tools, tools
      └ Power Tools
         └ Air Tools
            ├ Air hoses and reels
            ├ Fittings, sockets, cocks
            ├ air duster
            ├ air hammer
            ├ riveter
            ├ nozzle
            ├ Nails, staples, nails
            ├ Air chuck
            ├ air screwdriver
            └ Other air tools
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