This Tariff Concession Order declares that certain unassembled grit‑blasting machines (tariff classification 8424.30.90, listing nine specific components) are goods to which Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 applies, effective 28 Feb 2007. Mechanically, it changes how those imported goods are treated under the Customs Tariff by linking them to a specific Schedule item. It chiefly affects importers of the listed machines and the customs administration; compliance requires the imported goods to match the detailed component description and the Order remains in force until revoked under the cited Customs Act provisions.