supply of frp housing of colour light signalfrp housing of colour light signal,non metallic ( frp) colour light signal, housing of various types for railway signalling sui table for two-aspects. complete without lenses, lamps and signal transformer as per rdso drg. no.- s a23003 a/m ( adv) and as per specification no:- rdso/spn/194/2006 rev. 2.0 or latest. [ warranty p eriod: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] , non-metallic(frp) colour light signal,housing of various types for railway signalling suita ble for four-aspects.complete without lenses,lamps & signal transformer as per rdso drg.no.sa2300 1 a/m(adv) and as per specification no:- rdso/spn/194/2006 rev. 2.0 or latest. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] , non-metallic ( frp) colour light signal,housing of various types for railway signalling sui table for three-aspects. complete without lenses, lamps and signal transformer as per rdso drg. no. sa23002 a/m (adv)and as per specification no:- rdso/spn/194/2006 rev.2.0 or latest. [ warranty p eriod: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]