supply of different type retro-reflective boards.different type retro-reflective boards.,retro reflective type memu dj close board as follows, switch on power plate w ith word memu made up of 2mm aluminium sheet of size 800 x 400 mm. pasted with reflective sh eet in blue colour and letters/symbols of retro reflective type-iv high intensity prismatic s heeting in white colour similar to rdso drg.no re/33/349 mod b or latest and conforming to rdso s pecification no. eti/ohe/33a (12/97) rev-8 or latest. [ warranty period: 30 months after the date of deliv ery ] ] , retro-reflective type electric engine stop board size: 900mmx600mmx2mm as per rdso sp ec. no. eti/ohe/33a (12/97) rev-8 & similar to rdso drg no. eti/ohe/p/7572 or latest. guarantee certificat e of 120 months shall be provided as per mentioned specification [ warranty period: 30 months after the date of delivery ] ] , : retro-reflective power block working limit board size: 450 x 450 x 2 mm with co mplete fitting fasteners as per rdso spec. no. eti/ohe/33a (12/97) rev-8 or latest as per drawing attach ed. the material for base plate should be aluminum alloy sheet (is 737-1986) and material for numerals/sy mbols/letter should be made of retro-reflective high intensity micro prismatic sheeting (type-iv). guarantee certificate of 120 months shall be provided as per mentioned specification [ warranty period: 30 months after the date of delivery ] ] , supply of ohe caution board with supply of fixing material (clamp, back flat strip & fasteners ) for warning board for neutral section (i) 500m & 250 m size 750mm x 450mm x 2mm (retro reflective typ e) as per rdso specification no. eti/ohe/33a (12/97) rev-8 (11/2012) or latest and drg. no. re/33/347 rev- b or latest and (ii) electric engine to switch on & off size 800mmx 400mm x 2mm (retro reflective type ) as per rdso specification no. eti/ohe/33a(12/97) rev-8(11/2012) or latest and drg no. re/33/348, 349 re v-b or latest. (a set consists of 4 items 500m, 250m, dj