... THE OXYGEN IN A BOTTLE,THE GAS CAN’T BE USED UP COMPLETELY.IT SHOULD BE KEPT 0.2MP2. AFTER ... IS WITHIN 45°C6. THE SET MUST BE USED AND PLACED OFF FIRE MORE THAN 1 METERS7. LIQUEFIED GAS FILLING ... PRESSURE METER, WHEN THE FINGER STOP MOVING UP, TURN OFF THE SWITCH ON THE OXYGEN BOTTLE. IF FINGER IN THE ... DOWN AFTER THE SWITCH ON THE OXYGEN BOTTLE IS TURNED OFF, IT MEAN THE BOTTLE HAS FULLED THE GAS. IN ...