Tender For supply of rs resistor field weakening for 3 shunting notches with punched grid elements for wag 7 locomotives as per clw specn. no. clw/es/r-39 alt-d. mounting details as per sketch no. clw/es/s k-14/r-39 alt-d. each set consisting of 02 trays. [ warranty period: 30 months after the date of deliv ery ]