bids are invited for insulator track bolt track nut track roller 1.5 single solenoid valve,d2773b5001 , dgms approved plug socket complete set,200amps,geb side , intrinsically safe and bis certified prestart audio visual alarm as per is iec 60079 11 2011 and is iec 60079 0 2017 with dgms approval and bis certified flame proof , socket insulator with pin set , plug insulator with tube set , dgms approved flp signalling bell complete set with transformer, 550 110 15v,intrinsically safe,with flp enclosure , track bolt,part no.625a0500000138 , track nut,part no.625a0500000119 , track roller,part no.1027c050000005 , flight bar and link assy,part no.615m000000024 , filter element,part no.eea0003479 , spring assy,part no.627m000000062 , life time gasket,part no.eea0021923 , track chain link assy,part no.611m-100000142 procurement of plug and socket audio visual alarm socket total quantity : 768