Silico Manganese Steel Liner Size 100 X 80 X 4 Mm Thick. Drawing No.- Wd. - 9302 3 -S/1 Alt Nil Item No. 2. Material To Is: 3885-1992 Part-I With Amendment 1 And 2, Grade-Iv, Ha Rdness: 380-420 Bhn [Item To Be Procured From Rdso Approved Firms Only] [ Warranty Perio D: 30 Months After The Date Of Delivery ] ]