supply of non-metallic (frp) colour light signal housing multi-unit type for rly. signalling suitable for re area 3 aspect complete without lenses, l s and signal transformer...etc , non-metallic (frp) colour light signal housing multi-unit type for rly. signalling suitable for r e area 3 aspect complete without lenses, lamps and signal transformer as per drg. no. sa 23001/a/m(ad v). alt.8 and as per spec. no. rdso/spn/194/2006 (ver1.0) or latest. frp material as per rdso spec n o. rdso/spn/151/1997 or latest. all drawings should be as per the latest. note: signal unit should be com patible with led type. [ warranty period: 30 months after the date of delivery ] ]