supply of engineering indicator boards of different varieties .engineering indicator boards of different varieties .,retro reflective termination indicator board for passenger trains (tp) as per rdso provision al specification for retro-reflective indicators. technical spec. and dimensional drawing attached. [ warra nty period: 30 months after the date of delivery ] ] , retro reflective termination indicator board for goods trains (tg) as per rdso provisional s pecification for retro-reflective indicators. technical spec. and dimensional drawing attached. [ warranty period: 30 months after the date of delivery ] ] , retro reflective caution indicator board as per rdso provisional specification for retro-refle ctive indicators. technical spec. and dimensional drawing attached. [ warranty period: 30 months after t he date of delivery ] ] , retro reflective speed indicator board 75 kmph as per rdso provisional specification for re tro-reflective indicators. technical spec. and dimensional drawing attached. [ warranty period: 30 month s after the date of delivery ] ] , retro reflective speed restriction indicator board 20 kmph as per rdso provisional specific ation for retro-reflective indicators. technical spec. and dimensional drawing attached. [ warranty perio d: 30 months after the date of delivery ] ] , retro reflective speed indicator board 30 kmph as per rdso provisional specification for re tro-reflective indicators. technical spec. and dimensional drawing attached. [ warranty period: 30 month s after the date of delivery ] ] , retro reflective speed indicator board 45 kmph as per rdso provisional specification for re tro-reflective indicators. technical spec. and dimensional drawing attached. [ warranty period: 30 month s after the date of delivery ] ]