supply of blanking plug for earthing device & isolating bush for wheel set earthing equipmentblanking plug for earthing device & isolating bush for wheel set earthing equipment,blanking plug for earthing device of lhb coaches to rcf drg no.lw-71236. to be procured from rcf approved vendors only. [ warranty period: 30 months after the date of deliver y ] ] , isolating bush for wheel set earthing equipment conforming to rcf drg. no: lw71244 , alter ation aand as per rcf spec no: edts 101 rev-c, amendment-3, corrigendum-8, and annexure-1. to be pr ocured from rcf approved vendors only. [ warranty period: 30 months after the date of delivery ] ] => limited