3611 Structural aluminium work (4) Fabrication and erection of building frames of structural aluminium, either as the structural frame for the whole or part of the building or as general structural supports 3612 Aluminium minor structural members and supports (0) Minor structural members and supports of aluminium 3614 Light aluminium framing (0) Light aluminium framing, principally of aluminium sections, the sections framed together to form structural and non-structural assemblies of floors, walls, partitions, trusses, beams, etc., forming part or all of the frame of a building, fabricated off and/or on site 3615 Aluminium pipe framing (0) Aluminium pipe as framing for partitions, walls, etc. 3617 Aluminium floors (0) Aluminium floors including associated aluminium supports