FF is full-name glass fiber reinforced plastics double-deck oil tank. Both inner and outer layers are made of glass fiber reinforced plastics, with interspace space in the middle.
At the same time, it is equipped with leakage detection device, which can monitor the gap space 24 hours. Once the inner tank or the outer tank leaks, the sensor of the leakage detection device can alarm when the liquid level at the bottom of the clearance space is monitored to ensure the safe use of the tank.
