DINGLIU Siphon storage ,drainage and protection system is the scientific application of sponge city concept in garage roof,roof greening and other projects.It is mainly composed of storage and drainage special shaped plate,siphonic drain tank,air vent and rainwater storage facilities.

The advantages are: zero slope, organized drainage, air permeability and water separation, rapid drainage, water resources conservation, low cost, fast construction speed, convenient installation and maintenance.