"Weilong" brand SAP special for flood-controlling sand bag, made of SAP and water permeable natural sack, is ideal product for preventing or controlling flood.

Three characteristics:

1, It is convenient for use. It can swell into 20kg from 0.4kg if it soaks in water for 3-5 minutes.

2, With economic benefits. It does not need large warehouse and it can be used repeatedly.

3, In accordance with requirements of environmental protection, Natural sack has no pollution to the environment.