The present invention provides an apparatus for creating an outer surface effect of a structure wherein at least one wall of the structure defines a support surface, the apparatus comprising means defining a covering surface which overlies the support surface but is movable therefrom, so that a quantity of material to create the outer surface effect can be positioned between the support surface and the covering surface, and wherein the covering surface is in the form of a panel.

 
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> Easy clean culvert system

> Structure of intermediate wall of three arch excavated tunnel and method for constructing the same

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