Roofing walkways of metal or predominantly of metal; access platforms (scaffolding) of metal; metal platforms for climbing purposes; metal structures for use as platforms; mobile aerial work platforms (scaffolding) of metal; mobile platforms (scaffolding) of metal; platforms for use as working areas (metallic); platforms of metal; platforms, prefabricated, of metal; structural platforms (structures) of metal; work platforms (scaffold towers) of metal; work platforms (scaffolding) of metal; working platforms (scaffold towers) of metal; working platforms (scaffolding) of metal; working platforms (structures)

Roofing walkways of non-metal or predominantly of non-metal; access platforms (scaffolding) of non-metal; non-metal platforms for climbing purposes; non-metal structures for use as platforms; mobile aerial work platforms (scaffolding) of non-metal; mobile platforms (scaffolding) of non-metal; platforms for use as working areas (non-metallic); platforms of non-metal; platforms, prefabricated, of non-metal; structural platforms (structures) of non-metal; work platforms (scaffold towers) of non-metal; work platforms (scaffolding) of non-metal; working platforms (scaffold towers) of non-metal; working platforms (scaffolding) of non- metal