supply of portable fire extinguishersportable fire extinguishers, supply of portable fire extinguisher ( a, b, c ) 6 kgs. capacity stored pressure type filled with monoammonium phosphate 50% powder confirms to is:14609, applicable on class a, b, c & electrically started fires, with the fire rating 3a & 21b as per is: 15683:2018 having composite / ss / aluminium cylinder with holding bracket to scr / c&w / sk.no.1203 / c, alt-1 fitted with control squeeze grip valves, pressure gauges and special helium leak detection tested cylinder with isi. make: safepro, extane, minimax, cease fire, fire stone or equivalent => limited