bids are invited for boq total quantity : 1-- 1. discharge tube along with discharge horn of co2 2kg / 3kg fire extinguishers: discharge tube should be 1 ( one ) metre long high pressure with braided rubber ( bis marked ) of good quality along with non-conducting discharge horn with insulated rubber grip valve which should fit isi marked and bis 2878 co2 extinguishers. 2 rubber washer: rubber washer made of good quality neoprene rubber for 63.5 mm ( 2.5 inch. ) female coupling of hydrant / delivery hose. 3 safety lock with pin for co2 extinguishers 4 discharge tube with horn 1.for co2 22.5 kg extinguisher - 30 nos. length- not less then 01 meters 5 rubber washer lending-v 6 rubber disc washers of 68mm dia& 84mm dia having 6 mm thickness ( 200 each type ) for fire hydrants landing valves. 7 rubber washer for suction hose dia-75mm 8 discharge tube washer for mech foam 9lt fire extinguisher: discherge tube washer should be made of good quality teflon and should match to our existing mech. foam 9lt fire extinguishers as per sample provided. 9 head cap washer for mech foam 9 lt fire extinguiher: head cap washer should be made of good quality neoprene rubber and should suit to our existing mechanical foam -9ltr fire extinguishers. ( as per sample ) 10 rubber washer for cap of dcp extinguisher of 5 kg capacity. 11 rubber washer for cap of dcp extinguishers of 10 kg capacity. 12 safety clip made of ss for the cap assembly of dcp extingushers. 13 discharge tube 09 kg dcp extinguisher ( stored pressure type ) 14 discharge tube 06 kg dcp