supply of contact springs in sets for q relayscontact springs in sets for q relays,contact springs in sets for q relays. each set comprising of: (1) fixed spring to dr g.no. qca 26970 - alt-3 - 16 nos., (2) moving spring to drg.no.qca 23971 alt-6 - 16 nos., (3) support spring to drg.no. qca 27972 alt-5 - 4 nos. each item to be packed separately in polythene bags c ontaining following quantities of springs along with adequate quantity of silica gel packed in cotton bags to avoid ingress of moisture. (1) fixed spring: 1600 nos., (2) moving spring : 1600 no s., (3) support spring: 400 nos. [ warranty period: 30 months after the date of delivery ] ]