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Swiss federal authorities
  • 23.11.1 Flat glass
  • 23.11.11 Glass cast, rolled, drawn or blown, in sheets, but not otherwise worked
  • 23.11.12 Float glass and surface ground or polished glass, in sheets, but not otherwise worked
  • 23.11.9 Sub-contracted operations as part of manufacturing of flat glass
  • 23.11.99 Sub-contracted operations as part of manufacturing of flat glass