supply of 10 mm taper pin10 mm taper pin,10 mm taper pin, as per rdso drg. no.-sk-77536, alt.-6, item no.-22, material specification as per drawing [ warranty period: 30 months after the date of delivery ] ] , three taper key for bobyn wagon as per rdsos sk-77536,alt - 6 , item no. 23,24 & 25 as listed below :- (i) 12 x 10 x 100 mm gib head rectangular taper key , item no. - 23, is: 2293 - 74 (reaffirmed-2002),qty.-24nos. (ii) 12 x 10 x 85 mm , plain rectangular taper key , item no. 2 4, is : 2292- 74 (reaffirmed -2002) qty.-04 nos. (iii) 10 x 6 x 50 mm , gib head rectangular taper k ey, item no. 25, is : 2293 - 74 (reaffirmed-2002),qty.-04 nos. material and specification as per d rawing [ warranty period: 30 months after the date of delivery ] ]