Custom Bid for Services- Sch 1 Charges for Supply of Sand of grain size 850 425 micron for use in the locomotives as per Specifications IS 1987 2002 Grade C and AAR M 91651 duly packed in Polythene bags of 25 Kgs at RDM and BPA for two years Qty 14.., Custom Bid for Services- Sch 2 Charges 06 Unskilled Labour for filling of sand in locomotive and attention of sanders round the clock at RDM and BPA 3 unskilled man power each RDM and BPA for two years