Supply of Clean Silica Sand, Free From Clay, Loams, Mica And Other Foreign Material, A S Per Specification No.Aar M-916-51 To Be Used On All Classes Of Diesel And Electric L Ocomotive Packing In 30 Kgs Water Proof Polythene Bags As Per Rdso Letter No. Sd. Dfm.A.8 Dated28/29.12.2011. Specn: Sl No2-9-66, Warranty Period: 30 Months After The Date Of Delivery