257 11 % 19 % 2 4 A B C laying bond 25x12,5x10 2 0 2 Meets PTV 126 Water permeability: 11% Grass surface: 19% Water retaining capacity: 13 l/m² A= Seamstone B=Greenstone 2 0 C=Greenstone 4 0 greenstone eco solutions
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