supply of mech itemsmech items,brush holder housing for wheel set earthing equipment to rcf drg.no.lw71238 alt-nil or latest. (material to be procure from rcf approved source only) [ warranty period: 30 months after the date of delivery ] ] , housing complete for earthing brush assembly for lhb coach. rcf drawing no.lw71233 alt a. mat erial specification as per drawing. [ warranty period: 30 months after the date of delivery ] ] , clip assembly for wheel set earthing equipment for lhb type coaches to rcf drg.no.lw71240,alt.nil [ warrant y period: 30 months after the date of delivery ] ] , carbon brush assembly for wheel set earthing equipment for lhb type coaches to rcf .drg. no.l w 1239. alt.nil [ warranty period: 30 months after the date of delivery ] ]