1.2.1 to ease creating a waterproof wall for commercial buildings, because it fills the wind into the wind and sand bags were placed in the gap in the Middle, it will become instantly waterproof-sand bags.
1.2.1 To facilitate the creation of the Flood for commercial buildings. It just inflate the airbag. And put sand into the gap in the middle. It will become a sandbag water immediately.
1.2.1 for ease of waterproof wall for commercial buildings. Just because the air in the alveoli. The sand into the gap in the middle. It will become a sand bag waterproof immediately.