supply of set of plastic cover for hb-1 and hb-2 panel for three phase locomotives as per clw drg. no. (i)1209-15-343-037, alt-1 or latest and (ii) 1209-15-343-038, alt-1 or latest. each set consisting of 02 items in 02nos. one no. from each drg. as per clw spec. no. clw/es/3/0140, alt d or latest.