6
Staircases of metal; Stair components of metal; Stringers [parts of staircases] of metal; Staircase frameworks of metal; Staircase anchors of metal; Stair treads [steps] of metal; Stair treads (steps) of metal; Balustrading of metal; Bannisters of metal; Ballustrading of metal; Balustrading of metal; Parapet supports of metal; Railing holders of metal; Barriers and handrails of metal; Hand rails of metal for stairs; Centre poles of metal for staircases; Staircases of metal for building
19
Staircases, not of metal; Stair components, not of metal; Stringers [parts of staircases], not of metal; Staircase frameworks, not of metal; Staircase anchors, not of metal; Stair-treads [steps], not of metal; Stair treads (steps), not of metal; Fences, not of metal; Fences, not of metal; Balustrading, not of metal; Banister rails, Not of metal; Banister supports, not of metal; Railing holders, Not of metal; Handrails for banisters, not of metal; Handrails of non-metallic materials for stairs; Central poles for stairs, Not of metal; Stairs, not of metal, for use in building
37
Planning, building and construction of staircases, concrete staircases, staircases solely of wood, and staircases of steel and wood; Planning, building and construction staircase components, stringers (parts of staircases), staircase frameworks, stair treads (steps), staircase coverings, banisters, banisters for staircases and handrails; Planning, building and construction of stair lifts and stair hoists