supply of set of items for axle box brush holderset of items for axle box brush holder,set of items for axle box brush holder primary return current. set consists of 3 items.1) spring clip (pressure device) for axle box carbon brush of 3 phase locos as per ref.2 of sheet no. 8 of clw spec. no.clw/es /3/0017, alt-d or latest qty-12 nos.2) insulating bush small for earth return brush with brush holder assly., as per clw spec. no. clw/es/3/0017 alt-d or latest ref. item no. 03 of sheet no.08, qty - 40 nos.3) insulating bush lar ge for earth return brush with brush holder assly., clw spec.no. clw/es/3/0017 alt-d or latest ref. item. no.04 of sheet no. 08, qty-40 nos [ warranty period: 30 months after the date of delivery ] ]