255 20 % 33 % A B 2 C 4 laying bond 25x12,5x10 4 0 2 Meets PTV 126 Water permeability: 20% Grass surface: 33% Water retaining capacity: 24 l/m² A= Seamstone B=Greenstone 2 0 C=Greenstone 4 0 greenstone eco solutions
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