supply of (1) 25 kv danger board enamelled type as per rdsos drg. no. eti/ohe/p/7531, mod - c & rdsos spec. no. - eti/ohe/33 ( 8/85 ).(2) staff caution board retro type as per rdso specification no. eti/ohe/33a (12/97) rev.-8 (11-2012) and drg. no. eti/ohe/p/7531 mod-c(3) signal caution board for switch off power dj off at neutral section for electric engine (size 800x400 mm) rdso drg. no. re/33/348,mod. b spec. no. eti/ohe/33a (12/97)(4) public caution board retro reflective type as per rdso specification no eti/ohe/33a rev.- 8, [11/2012] and drg no. re/33/p/7551 mod-c. , signal caution board for switch off power dj off at neutral section for electric engine (siz e 800x400 mm) rdso drg. no. re/33/348,mod. b spec. no. eti/ohe/33a (12/97) [ warranty period: 30 months after the date of delivery ] ] , public caution board retro reflective type as per rdso specification no eti/ohe/33a re v.- 8, [11/2012] and drg no. re/33/p/7551 mod-c. [ warranty period: 30 months after the date of del ivery ] ] , staff caution board retro type as per rdso specification no. eti/ohe/33a (12/97) rev.-8 (11-2012) and drg. no. eti/ohe/p/7531 mod-c [ warranty period: 30 months after the date of deliver y ] ] , 25 kv danger board enamelled type as per rdsos drg. no. eti/ohe/p/7531, mo d - c & rdsos spec. no. - eti/ohe/33 ( 8/85 ). [ warranty period: 30 months after the date of deliv ery ] ]