Grey cast iron- heavy type manhole cover. Cover and frame milled by lathe. Cover is connected to the frame with galvanized chain for security.Round Manhole CoverMaterial*EN GJL 250 & DIN GG 25Class*D 400Product Info Product weight is 125 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).