Structural lightweight concrete slab cast into polystyrene void formwork

Installations for waste water engineering

Non-metallic civil engineering structures

Architectural concrete products for building purposes; concrete articles for building walls; concrete articles for retaining slopes; concrete articles for stabilising slopes; concrete beams; concrete blocks; concrete building elements; concrete products for use in building; concrete products for use in gardens; concrete products for use in landscaping; concrete products for use in roadways; precast concrete beams; precast concrete building elements; precast concrete girders; reinforced concrete; structural elements of concrete

Installations for waste water engineering

Non-metallic civil engineering structures

Building and construction products including pre-cast concrete pipes box culverts, access chambers, arches, tanks, railway sleepers and prestressed and reinforced beams; none of the foregoing being moulded doorskin - woodchip mouldings, wooden doors, timber and fibre cement products and fibre cement decorative sheeting

Aggregate, sand, concrete, concrete products and pipes, pre-cast concrete products, railway sleepers, cementitious binders, cement

In respect of a rubber seal used to seal connections between concrete manholes and ingoing and outgoing pipes

In respect of structural concrete slab cast into formwork which itself contributes to the strength of the slab, being in the nature of building structures in this class

Concrete pipes, manhole units, septic tanks and troughing units.

Steel pipes applicable for various industrial purposes, including water supply, gas supply, hydroelectric penstocks, piles, standards or poles for supporting street lamps and telegraphic, electric lighting and electric tramway wiring and also the following articles composed wholly or mainly of steel-dished and flanged ends for steel pipes, liquid storage tanks and pressure vessels, all being goods not included in other classes,