Construction and repair services being all types of construction and repair services requiring technical supervision and inspection by architects and/or engineers including the construction and repair of buildings, dams, roads and retaining walls, bridges, marine walls and storage structures.

Architectural and engineering consultancy services in this class; architectural design services in this class and engineering design services in this class; surveying; all types of works in this class requiring technical supervision and inspection by architects and/or engineers

Building materials, natural and artificial stone, cement; precast concrete building and structural components; road-making materials.

Unwrought and partly wrought common metals and their alloys; rolled and cast building materials; metallic structural reinforcing elements; metallic structural facing elements