When the amount of rainwater is more than the design value of the gutters, water is discharged naturally along the eaves.Rainwater is collected, and then drained to the municipal catch basins.
英
美
- 当雨水两超出雨水沟设计量时;雨水可沿屋檐自由排放.;雨水被收集;然后排入市政集水池