... ,Plastic rack etc. Manufactory 2 D). How to use-1kg dry chemical powder fire extinguisher Pull the ... &BS EN3 3. Working pressure: 18Bar; 4. Test Pressure: 27Bar;Portable Dry Powder fire extinguisher1kg, 2kg, ... , 6kg, 7kg, 9kg, 10kgWorking pressure: 174Bar;Test Pressure: 250Bar;Cleint's label can be offered. ... 3kg, 4kg,6kg, 9kg, Working pressure: 18Bar;Test Pressure: 27Bar;Cleint's label can be offered ...