supply of retro-reflective typeretro-reflective type,retro-reflective type warning board for neutral section 500 m of size 450x750x2 mm (pasted with non-reflective sheet in blue colour and letter s/symbols of retro reflective type-iv high intensity prismatic sheeting in white colour) conforming to rdso specification. no. eti/ohe/33a (12/97) rev-8 or lat est and similar to rdso drg. no.re/33/347 mod-b or latest guarantee certificate of 120 months shall be provided as per mentioned specification. [ warrant y period: 120 months after the date of delivery ] ] , retro-reflective type warning board for neutral section 250 m of size 450x750x2 mm (pasted with non-reflective sheet in blue colour and letter s/symbols of retro reflective type-iv high intensity prismatic sheeting in white colour) conforming to rdso specification. no. eti/ohe/33a (12/97) rev-8 or lat est and similar to rdso drg. no.re/33/355 mod-b or latest. guarantee certificate of 120 months shall be provided as per mentioned specification. [ warrant y period: 120 months after the date of delivery ] ] , retro reflective type memu dj close board as follows, switch on power plate with word ?memu? made up of 2mm aluminium s heet of size 800 x 400 mm. pasted with reflective sheet in blue colour and letters/symbols of retro reflective type-iv high intensity pri smatic sheeting in white colour as per rdso spec no. eti/ohe/33a 12/97 rev. 8 or latest and similar to rdso drg.no re/33/349 mod b or latest. gu arantee certificate of 120 months shall be provided as per mentioned specification. [ warranty period: 120 months after the date of delivery ] ] , retro reflective sigma sign board of size 450x600x2 mm (pasted with non-reflective sheet in blue colour and letters/symbols of retro reflective t ype-iv high intensity prismatic sheeting in yellow colour) conforming to as per rdso specification no. eti/ohe/33a/12/97) rev.8 or latest & rdso drg. no. ti/ drg/ohe/pltbrd/rdso/0036/12/0 or latest. guarantee certificate of 120