tender for items for bobyn wagon (i) gib head rectangular taper key size: 12 x 10 x 100 mm (qty-24nos.) (ii) plain rectangular taper key size: 12 x 10 x 85 mm (qty-04 nos.) (iii) gib head rectangular taper keysize : 10 x 06 x 50 mm (qty-04 nos.) (sr.no. (i) to (iii) consisting of 32 nos.= 1 set) as per rdso drg. no.: sk-77536, alt-06 item no. : 23,24 & 25(annexure-a) & is :2293-1974, .