5 days for sample ,while 20days for bulk production
Instructions
1 pull the yellow piston up before use 2 connect the gun body to the top of tankchoose the postion of cupping well 3 press the gun and press it according to the individual endurance pumping air gun 4 remove the air gun after exhaustion 5 pull the piston to wait for air to flow into the tank 6 after the gas flow out of the tank remove the tank and wipe it gently with wet paper