Grey iron casting- protection of the bottom of tree,it is used the bottom of trees ta the park- gardens and pavament.Rectangle Tree GratingsMaterial*EN GJL 250 & DIN GG 25Class*C 250Product Info Product weight is 120 kg. Manufactured in compliance with EN124 NotesWeight tolerance: plus or minus 2 kg (up to 24 kg)plus or minus 3 kg (24�125 kg)and plus or minus 4 kg (over 125 kg).