supply of brake module, electronic voice message sounder, internal filter cartridgebrake module, electronic voice message sounder, internal filter cartridge,brake module to sanrok part no. 2ed-254-4387 for automatic smoke/fire detection with alarm system [ warranty period: 30 months after the date of delivery ] ] , electronic voice message sounder (part.no./ drg.no - 2 ed - 254 -1940 ) [ warranty period: 30 months after the date of delivery ] ] , internal filter cartridge of vesda compact laser detector (for vlf) sanrok part no. 2ed-255-4988 per rdso specification no. r dso/2008/cg-04 (rev-6) or latest. [ warranty period: 30 months after the date of delivery ] ] , brake valve connector to sanrok part no. 2ed-254-5109 of automatic smoke/fire detection with alarm system for ac coaches as per rdso spec no. rdso/2008/cg-04 (rev-6). firms offer make/brand:-sanrok [ warranty period: 30 months after the date of delivery ] ] , supply of flasher light for automatic smoke and heat detection with alarm system as per sanrok part no. 2ed-255-1972. accepted make ; sa nrok [ warranty period: 30 months after the date of delivery ] ] , strobe light with hooter having part no. 2ed-254-1939 make: sanrok [ warranty period: 30 months after the date of delivery ] ]