British Standards EN 1176 Free Fall Height in Ball Hill #BS #EN #1176 #FFH #Surfaces #Ball #Hill https://t.co/gbDAZObFl4
British Standards EN 1176 Free Fall Height in Ball Hill #BS #EN #1176 #FFH #Surfaces #Ball #Hill https://t.co/gbDAZObFl4
— Playground Surfaces (@playsurfaceuk) August 15, 2017
source http://ukplaygroundsurfaces.tumblr.com/post/164227668219
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