End Arch Bricks 230X113X75X70,A1203-80%.Fe203-2.Bd Gm/Cc Min-2.8.A.P% Max-2 0,Ccs Kg/Cm Sq-Min 550,Rulta At Min 1600 Degree Centigrade Pce O/C Min 38,Plc For 2 Hour S At- 1600 Degree Centigrade,0.3.5%(No Minus Values Permitted)Function Service 1350 De Gree Centigrade, To With Stand Billet Load At 1350 Degree Centigrade, Slag Resistant. ]