36 + 1 3 Ž Erecting scaffolding. A head for heights is required especially when one is 30 or 40 storeys above the ground (photograph courtesy of the Hong Kong Construction Industry Training Authority).
36 + 1 3 Ž Erecting scaffolding. A head for heights is required especially when one is 30 or 40 storeys above the ground (photograph courtesy of the Hong Kong Construction Industry Training Authority).